88711217 has 6 divisors (see below), whose sum is σ = 103194738. Its totient is φ = 76038144.

The previous prime is 88711213. The next prime is 88711289. The reversal of 88711217 is 71211788.

It can be written as a sum of positive squares in only one way, i.e., 67881121 + 20830096 = 8239^2 + 4564^2 .

It is not a de Polignac number, because 88711217 - 2² = 88711213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88711213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 905168 + ... + 905265.

It is an arithmetic number, because the mean of its divisors is an integer number (17199123).

Almost surely, 2^88711217 is an apocalyptic number.

It is an amenable number.

88711217 is a deficient number, since it is larger than the sum of its proper divisors (14483521).

88711217 is a wasteful number, since it uses less digits than its factorization.

88711217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810447 (or 1810440 counting only the distinct ones).

The product of its digits is 6272, while the sum is 35.

The square root of 88711217 is about 9418.6632278684. The cubic root of 88711217 is about 445.9910865117.

The spelling of 88711217 in words is "eighty-eight million, seven hundred eleven thousand, two hundred seventeen".