39069427 has 4 divisors (see below), whose sum is σ = 39806640. Its totient is φ = 38332216.

The previous prime is 39069419. The next prime is 39069469. The reversal of 39069427 is 72496093.

39069427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72496093 = 5039 ⋅14387.

It is a cyclic number.

It is not a de Polignac number, because 39069427 - 2³ = 39069419 is a prime.

It is a super-2 number, since 2×39069427² = 3052840252216658, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 39069427.

It is not an unprimeable number, because it can be changed into a prime (39069497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368527 + ... + 368632.

It is an arithmetic number, because the mean of its divisors is an integer number (9951660).

Almost surely, 2^39069427 is an apocalyptic number.

39069427 is a deficient number, since it is larger than the sum of its proper divisors (737213).

39069427 is an equidigital number, since it uses as much as digits as its factorization.

39069427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737212.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 39069427 is about 6250.5541354347. The cubic root of 39069427 is about 339.3222571778.

The spelling of 39069427 in words is "thirty-nine million, sixty-nine thousand, four hundred twenty-seven".