38889615 has 16 divisors (see below), whose sum is σ = 62320608. Its totient is φ = 20708736.

The previous prime is 38889601. The next prime is 38889623. The reversal of 38889615 is 51698883.

It is not a de Polignac number, because 38889615 - 2¹⁴ = 38873231 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10329 + ... + 13581.

It is an arithmetic number, because the mean of its divisors is an integer number (3895038).

Almost surely, 2^38889615 is an apocalyptic number.

38889615 is a deficient number, since it is larger than the sum of its proper divisors (23430993).

38889615 is a wasteful number, since it uses less digits than its factorization.

38889615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4058.

The product of its digits is 414720, while the sum is 48.

The square root of 38889615 is about 6236.1538627587. The cubic root of 38889615 is about 338.8008942109.

The spelling of 38889615 in words is "thirty-eight million, eight hundred eighty-nine thousand, six hundred fifteen".