88921615 has 16 divisors (see below), whose sum is σ = 112780800. Its totient is φ = 67118112.

The previous prime is 88921597. The next prime is 88921639. The reversal of 88921615 is 51612988.

It is a cyclic number.

It is not a de Polignac number, because 88921615 - 2⁵ = 88921583 is a prime.

It is a super-2 number, since 2×88921615² = 15814107228416450, which contains 22 as substring.

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, 23206 + ... + 26764.

It is an arithmetic number, because the mean of its divisors is an integer number (7048800).

Almost surely, 2^88921615 is an apocalyptic number.

88921615 is a deficient number, since it is larger than the sum of its proper divisors (23859185).

88921615 is a wasteful number, since it uses less digits than its factorization.

88921615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3846.

The product of its digits is 34560, while the sum is 40.

The square root of 88921615 is about 9429.8258202366. The cubic root of 88921615 is about 446.3433965107.

The spelling of 88921615 in words is "eighty-eight million, nine hundred twenty-one thousand, six hundred fifteen".