38656289 has 4 divisors (see below), whose sum is σ = 44178624. Its totient is φ = 33133956.

The previous prime is 38656273. The next prime is 38656291. The reversal of 38656289 is 98265683.

It is a happy number.

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 38656289 - 2⁴ = 38656273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38656229) 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, 2761157 + ... + 2761170.

It is an arithmetic number, because the mean of its divisors is an integer number (11044656).

Almost surely, 2^38656289 is an apocalyptic number.

It is an amenable number.

38656289 is a deficient number, since it is larger than the sum of its proper divisors (5522335).

38656289 is an equidigital number, since it uses as much as digits as its factorization.

38656289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5522334.

The product of its digits is 622080, while the sum is 47.

The square root of 38656289 is about 6217.4181940738. The cubic root of 38656289 is about 338.1219667671.

The spelling of 38656289 in words is "thirty-eight million, six hundred fifty-six thousand, two hundred eighty-nine".