38856907 has 4 divisors (see below), whose sum is σ = 39760600. Its totient is φ = 37953216.

The previous prime is 38856901. The next prime is 38856929. The reversal of 38856907 is 70965883.

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

It is a cyclic number.

It is not a de Polignac number, because 38856907 - 2¹⁵ = 38824139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38856901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451782 + ... + 451867.

It is an arithmetic number, because the mean of its divisors is an integer number (9940150).

Almost surely, 2^38856907 is an apocalyptic number.

38856907 is a deficient number, since it is larger than the sum of its proper divisors (903693).

38856907 is an equidigital number, since it uses as much as digits as its factorization.

38856907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903692.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 38856907 is about 6233.5308613979. The cubic root of 38856907 is about 338.7058850610.

The spelling of 38856907 in words is "thirty-eight million, eight hundred fifty-six thousand, nine hundred seven".