891064156 has 12 divisors (see below), whose sum is σ = 1561910392. Its totient is φ = 444804048.

The previous prime is 891064127. The next prime is 891064157. The reversal of 891064156 is 651460198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (891064157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179250 + ... + 184153.

Almost surely, 2^891064156 is an apocalyptic number.

It is an amenable number.

891064156 is a deficient number, since it is larger than the sum of its proper divisors (670846236).

891064156 is a wasteful number, since it uses less digits than its factorization.

891064156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364020 (or 364018 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 891064156 is about 29850.6977472889. The cubic root of 891064156 is about 962.2833941316.

The spelling of 891064156 in words is "eight hundred ninety-one million, sixty-four thousand, one hundred fifty-six".