88731217 has 16 divisors (see below), whose sum is σ = 95956992. Its totient is φ = 81829440.

The previous prime is 88731193. The next prime is 88731229. The reversal of 88731217 is 71213788.

It is a cyclic number.

It is not a de Polignac number, because 88731217 - 2¹¹ = 88729169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88731277) 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, 107667 + ... + 108487.

It is an arithmetic number, because the mean of its divisors is an integer number (5997312).

Almost surely, 2^88731217 is an apocalyptic number.

It is an amenable number.

88731217 is a deficient number, since it is larger than the sum of its proper divisors (7225775).

88731217 is a wasteful number, since it uses less digits than its factorization.

88731217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008.

The product of its digits is 18816, while the sum is 37.

The square root of 88731217 is about 9419.7248898256. The cubic root of 88731217 is about 446.0246003175.

The spelling of 88731217 in words is "eighty-eight million, seven hundred thirty-one thousand, two hundred seventeen".