38615489 has 4 divisors (see below), whose sum is σ = 42126000. Its totient is φ = 35104980.

The previous prime is 38615477. The next prime is 38615509. The reversal of 38615489 is 98451683.

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 38615489 - 2⁸ = 38615233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38615389) 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, 1755239 + ... + 1755260.

It is an arithmetic number, because the mean of its divisors is an integer number (10531500).

Almost surely, 2^38615489 is an apocalyptic number.

It is an amenable number.

38615489 is a deficient number, since it is larger than the sum of its proper divisors (3510511).

38615489 is a wasteful number, since it uses less digits than its factorization.

38615489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3510510.

The product of its digits is 207360, while the sum is 44.

The square root of 38615489 is about 6214.1362231609. The cubic root of 38615489 is about 338.0029673070.

The spelling of 38615489 in words is "thirty-eight million, six hundred fifteen thousand, four hundred eighty-nine".