891328627 has 16 divisors (see below), whose sum is σ = 1073167360. Its totient is φ = 723183552.

The previous prime is 891328609. The next prime is 891328657. The reversal of 891328627 is 726823198.

It is a de Polignac number, because none of the positive numbers 2^k-891328627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (891328657) 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, 231238 + ... + 235060.

It is an arithmetic number, because the mean of its divisors is an integer number (67072960).

Almost surely, 2^891328627 is an apocalyptic number.

891328627 is a deficient number, since it is larger than the sum of its proper divisors (181838733).

891328627 is a wasteful number, since it uses less digits than its factorization.

891328627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5602.

The product of its digits is 290304, while the sum is 46.

The square root of 891328627 is about 29855.1273150861. The cubic root of 891328627 is about 962.3785877550.

The spelling of 891328627 in words is "eight hundred ninety-one million, three hundred twenty-eight thousand, six hundred twenty-seven".