891275164 has 12 divisors (see below), whose sum is σ = 1679710984. Its totient is φ = 411357744.

The previous prime is 891275131. The next prime is 891275191. The reversal of 891275164 is 461572198.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 891275164.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8569902 + ... + 8570005.

Almost surely, 2^891275164 is an apocalyptic number.

It is an amenable number.

891275164 is a deficient number, since it is larger than the sum of its proper divisors (788435820).

891275164 is a wasteful number, since it uses less digits than its factorization.

891275164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17139924 (or 17139922 counting only the distinct ones).

The product of its digits is 120960, while the sum is 43.

The square root of 891275164 is about 29854.2319278189. The cubic root of 891275164 is about 962.3593458153.

The spelling of 891275164 in words is "eight hundred ninety-one million, two hundred seventy-five thousand, one hundred sixty-four".