89664871 has 8 divisors (see below), whose sum is σ = 90901584. Its totient is φ = 88435200.

The previous prime is 89664863. The next prime is 89664877. The reversal of 89664871 is 17846698.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89664871 - 2³ = 89664863 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 (89664877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27015 + ... + 30151.

It is an arithmetic number, because the mean of its divisors is an integer number (11362698).

Almost surely, 2^89664871 is an apocalyptic number.

89664871 is a deficient number, since it is larger than the sum of its proper divisors (1236713).

89664871 is a wasteful number, since it uses less digits than its factorization.

89664871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521.

The product of its digits is 580608, while the sum is 49.

The square root of 89664871 is about 9469.1536580626. The cubic root of 89664871 is about 447.5835425522.

The spelling of 89664871 in words is "eighty-nine million, six hundred sixty-four thousand, eight hundred seventy-one".