88115681 has 4 divisors (see below), whose sum is σ = 88656432. Its totient is φ = 87574932.

The previous prime is 88115623. The next prime is 88115689. The reversal of 88115681 is 18651188.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 88115681 - 2⁶ = 88115617 is a prime.

It is a super-2 number, since 2×88115681² = 15528746476187522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88115689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270131 + ... + 270456.

It is an arithmetic number, because the mean of its divisors is an integer number (22164108).

Almost surely, 2^88115681 is an apocalyptic number.

It is an amenable number.

88115681 is a deficient number, since it is larger than the sum of its proper divisors (540751).

88115681 is a wasteful number, since it uses less digits than its factorization.

88115681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540750.

The product of its digits is 15360, while the sum is 38.

The square root of 88115681 is about 9386.9953126653. The cubic root of 88115681 is about 444.9908359852.

The spelling of 88115681 in words is "eighty-eight million, one hundred fifteen thousand, six hundred eighty-one".