88921915 has 16 divisors (see below), whose sum is σ = 110698560. Its totient is φ = 68515200.

The previous prime is 88921913. The next prime is 88921927. The reversal of 88921915 is 51912988.

It is not a de Polignac number, because 88921915 - 2¹ = 88921913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (88921913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16306 + ... + 21064.

It is an arithmetic number, because the mean of its divisors is an integer number (6918660).

Almost surely, 2^88921915 is an apocalyptic number.

88921915 is a deficient number, since it is larger than the sum of its proper divisors (21776645).

88921915 is a wasteful number, since it uses less digits than its factorization.

88921915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4902.

The product of its digits is 51840, while the sum is 43.

The square root of 88921915 is about 9429.8417271978. The cubic root of 88921915 is about 446.3438984617.

The spelling of 88921915 in words is "eighty-eight million, nine hundred twenty-one thousand, nine hundred fifteen".