39069913 has 4 divisors (see below), whose sum is σ = 39087028. Its totient is φ = 39052800.

The previous prime is 39069887. The next prime is 39069917. The reversal of 39069913 is 31996093.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31996093 = 101 ⋅316793.

It can be written as a sum of positive squares in 2 ways, for example, as 38900169 + 169744 = 6237^2 + 412^2 .

It is a cyclic number.

It is not a de Polignac number, because 39069913 - 2⁵ = 39069881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39069917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4488 + ... + 9913.

It is an arithmetic number, because the mean of its divisors is an integer number (9771757).

Almost surely, 2^39069913 is an apocalyptic number.

It is an amenable number.

39069913 is a deficient number, since it is larger than the sum of its proper divisors (17115).

39069913 is a wasteful number, since it uses less digits than its factorization.

39069913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17114.

The product of its (nonzero) digits is 39366, while the sum is 40.

The square root of 39069913 is about 6250.5930118670. The cubic root of 39069913 is about 339.3236641598.

The spelling of 39069913 in words is "thirty-nine million, sixty-nine thousand, nine hundred thirteen".