89640764 has 12 divisors (see below), whose sum is σ = 157029600. Its totient is φ = 44775168.

The previous prime is 89640763. The next prime is 89640773. The reversal of 89640764 is 46704698.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89640763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6629 + ... + 14940.

It is an arithmetic number, because the mean of its divisors is an integer number (13085800).

Almost surely, 2^89640764 is an apocalyptic number.

It is an amenable number.

89640764 is a deficient number, since it is larger than the sum of its proper divisors (67388836).

89640764 is a wasteful number, since it uses less digits than its factorization.

89640764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22612 (or 22610 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 89640764 is about 9467.8806498603. The cubic root of 89640764 is about 447.5434270143.

The spelling of 89640764 in words is "eighty-nine million, six hundred forty thousand, seven hundred sixty-four".