891326764 has 12 divisors (see below), whose sum is σ = 1560232800. Its totient is φ = 445545968.

The previous prime is 891326749. The next prime is 891326773. The reversal of 891326764 is 467623198.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10999 + ... + 43630.

It is an arithmetic number, because the mean of its divisors is an integer number (130019400).

Almost surely, 2^891326764 is an apocalyptic number.

It is an amenable number.

891326764 is a deficient number, since it is larger than the sum of its proper divisors (668906036).

891326764 is a wasteful number, since it uses less digits than its factorization.

891326764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58712 (or 58710 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 891326764 is about 29855.0961143990. The cubic root of 891326764 is about 962.3779172532.

The spelling of 891326764 in words is "eight hundred ninety-one million, three hundred twenty-six thousand, seven hundred sixty-four".