38297857 has 16 divisors (see below), whose sum is σ = 42336000. Its totient is φ = 34429824.

The previous prime is 38297843. The next prime is 38297867. The reversal of 38297857 is 75879283.

It is not a de Polignac number, because 38297857 - 2⁷ = 38297729 is a prime.

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 38297857.

It is not an unprimeable number, because it can be changed into a prime (38297837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91194 + ... + 91612.

It is an arithmetic number, because the mean of its divisors is an integer number (2646000).

Almost surely, 2^38297857 is an apocalyptic number.

It is an amenable number.

38297857 is a deficient number, since it is larger than the sum of its proper divisors (4038143).

38297857 is a wasteful number, since it uses less digits than its factorization.

38297857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600.

The product of its digits is 846720, while the sum is 49.

The square root of 38297857 is about 6188.5262381281. The cubic root of 38297857 is about 337.0736659747.

The spelling of 38297857 in words is "thirty-eight million, two hundred ninety-seven thousand, eight hundred fifty-seven".