88636689 has 12 divisors (see below), whose sum is σ = 130755456. Its totient is φ = 57833592.

The previous prime is 88636679. The next prime is 88636693. The reversal of 88636689 is 98663688.

It is not a de Polignac number, because 88636689 - 2⁸ = 88636433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (88636609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104349 + ... + 105194.

It is an arithmetic number, because the mean of its divisors is an integer number (10896288).

Almost surely, 2^88636689 is an apocalyptic number.

It is an amenable number.

88636689 is a deficient number, since it is larger than the sum of its proper divisors (42118767).

88636689 is a wasteful number, since it uses less digits than its factorization.

88636689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209596 (or 209593 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 88636689 is about 9414.7059964717. The cubic root of 88636689 is about 445.8661562892.

The spelling of 88636689 in words is "eighty-eight million, six hundred thirty-six thousand, six hundred eighty-nine".