89664870 has 32 divisors (see below), whose sum is σ = 219259872. Its totient is φ = 23459072.

The previous prime is 89664863. The next prime is 89664877. The reversal of 89664870 is 7846698.

It is an interprime number because it is at equal distance from previous prime (89664863) and next prime (89664877).

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26607 + ... + 29786.

It is an arithmetic number, because the mean of its divisors is an integer number (6851871).

Almost surely, 2^89664870 is an apocalyptic number.

89664870 is an abundant number, since it is smaller than the sum of its proper divisors (129595002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89664870 is a wasteful number, since it uses less digits than its factorization.

89664870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56456.

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 89664870 is about 9469.1536052596. The cubic root of 89664870 is about 447.5835408882.

The spelling of 89664870 in words is "eighty-nine million, six hundred sixty-four thousand, eight hundred seventy".