38023857 has 16 divisors (see below), whose sum is σ = 56494080. Its totient is φ = 25276176.

The previous prime is 38023819. The next prime is 38023861. The reversal of 38023857 is 75832083.

It is not a de Polignac number, because 38023857 - 2²² = 33829553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38023897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8503 + ... + 12179.

It is an arithmetic number, because the mean of its divisors is an integer number (3530880).

Almost surely, 2^38023857 is an apocalyptic number.

It is an amenable number.

38023857 is a deficient number, since it is larger than the sum of its proper divisors (18470223).

38023857 is a wasteful number, since it uses less digits than its factorization.

38023857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4069 (or 4063 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 38023857 is about 6166.3487575712. The cubic root of 38023857 is about 336.2678826695.

The spelling of 38023857 in words is "thirty-eight million, twenty-three thousand, eight hundred fifty-seven".