38989257 has 8 divisors (see below), whose sum is σ = 52330560. Its totient is φ = 25820400.

The previous prime is 38989229. The next prime is 38989283. The reversal of 38989257 is 75298983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38989257 - 2¹⁰ = 38988233 is a prime.

It is a super-2 number, since 2×38989257² = 3040324322824098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38989297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42582 + ... + 43487.

It is an arithmetic number, because the mean of its divisors is an integer number (6541320).

Almost surely, 2^38989257 is an apocalyptic number.

It is an amenable number.

38989257 is a deficient number, since it is larger than the sum of its proper divisors (13341303).

38989257 is a wasteful number, since it uses less digits than its factorization.

38989257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86223.

The product of its digits is 1088640, while the sum is 51.

The square root of 38989257 is about 6244.1378107790. The cubic root of 38989257 is about 339.0900031645.

The spelling of 38989257 in words is "thirty-eight million, nine hundred eighty-nine thousand, two hundred fifty-seven".