88215885 has 40 divisors (see below), whose sum is σ = 160544736. Its totient is φ = 46332000.

The previous prime is 88215859. The next prime is 88215889. The reversal of 88215885 is 58851288.

It is not a de Polignac number, because 88215885 - 2²³ = 79827277 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 88215885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88215889) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 25510 + ... + 28760.

Almost surely, 2^88215885 is an apocalyptic number.

It is an amenable number.

88215885 is a deficient number, since it is larger than the sum of its proper divisors (72328851).

88215885 is a wasteful number, since it uses less digits than its factorization.

88215885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3335 (or 3326 counting only the distinct ones).

The product of its digits is 204800, while the sum is 45.

The square root of 88215885 is about 9392.3311802768. The cubic root of 88215885 is about 445.1594513385.

It can be divided in two parts, 8821 and 5885, that added together give a triangular number (14706 = T₁₇₁).

The spelling of 88215885 in words is "eighty-eight million, two hundred fifteen thousand, eight hundred eighty-five".