89688291 has 32 divisors (see below), whose sum is σ = 150102528. Its totient is φ = 46275840.

The previous prime is 89688257. The next prime is 89688307. The reversal of 89688291 is 19288698.

It is not a de Polignac number, because 89688291 - 2⁹ = 89687779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89688251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35031 + ... + 37503.

It is an arithmetic number, because the mean of its divisors is an integer number (4690704).

Almost surely, 2^89688291 is an apocalyptic number.

89688291 is a deficient number, since it is larger than the sum of its proper divisors (60414237).

89688291 is a wasteful number, since it uses less digits than its factorization.

89688291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2651.

The product of its digits is 497664, while the sum is 51.

The square root of 89688291 is about 9470.3902242727. The cubic root of 89688291 is about 447.6225079944.

The spelling of 89688291 in words is "eighty-nine million, six hundred eighty-eight thousand, two hundred ninety-one".