38873257 has 4 divisors (see below), whose sum is σ = 39068800. Its totient is φ = 38677716.

The previous prime is 38873249. The next prime is 38873269. The reversal of 38873257 is 75237883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38873257 - 2³ = 38873249 is a prime.

It is a super-2 number, since 2×38873257² = 3022260219576098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38873227) 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, 97473 + ... + 97870.

It is an arithmetic number, because the mean of its divisors is an integer number (9767200).

Almost surely, 2^38873257 is an apocalyptic number.

It is an amenable number.

38873257 is a deficient number, since it is larger than the sum of its proper divisors (195543).

38873257 is a wasteful number, since it uses less digits than its factorization.

38873257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195542.

The product of its digits is 282240, while the sum is 43.

The square root of 38873257 is about 6234.8421792376. The cubic root of 38873257 is about 338.7533846786.

The spelling of 38873257 in words is "thirty-eight million, eight hundred seventy-three thousand, two hundred fifty-seven".