39708984427 has 4 divisors (see below), whose sum is σ = 45381696496. Its totient is φ = 34036272360.

The previous prime is 39708984407. The next prime is 39708984439. The reversal of 39708984427 is 72448980793.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39708984427 is a prime.

It is a super-3 number, since 3×39708984427³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39708984407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2836356024 + ... + 2836356037.

It is an arithmetic number, because the mean of its divisors is an integer number (11345424124).

Almost surely, 2^39708984427 is an apocalyptic number.

39708984427 is a deficient number, since it is larger than the sum of its proper divisors (5672712069).

39708984427 is an equidigital number, since it uses as much as digits as its factorization.

39708984427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5672712068.

The product of its (nonzero) digits is 24385536, while the sum is 61.

The spelling of 39708984427 in words is "thirty-nine billion, seven hundred eight million, nine hundred eighty-four thousand, four hundred twenty-seven".