89664311 has 4 divisors (see below), whose sum is σ = 97815624. Its totient is φ = 81513000.

The previous prime is 89664299. The next prime is 89664347. The reversal of 89664311 is 11346698.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89664311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89664361) 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, 4075640 + ... + 4075661.

It is an arithmetic number, because the mean of its divisors is an integer number (24453906).

Almost surely, 2^89664311 is an apocalyptic number.

89664311 is a deficient number, since it is larger than the sum of its proper divisors (8151313).

89664311 is a wasteful number, since it uses less digits than its factorization.

89664311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8151312.

The product of its digits is 31104, while the sum is 38.

The square root of 89664311 is about 9469.1240883199. The cubic root of 89664311 is about 447.5826107591.

The spelling of 89664311 in words is "eighty-nine million, six hundred sixty-four thousand, three hundred eleven".