891373896 has 240 divisors, whose sum is σ = 2954674800. Its totient is φ = 250278336.

The previous prime is 891373883. The next prime is 891373949. The reversal of 891373896 is 698373198.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

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 59 ways as a sum of consecutive naturals, for example, 2127175 + ... + 2127593.

It is an arithmetic number, because the mean of its divisors is an integer number (12311145).

Almost surely, 2^891373896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 891373896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1477337400).

891373896 is an abundant number, since it is smaller than the sum of its proper divisors (2063300904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

891373896 is a wasteful number, since it uses less digits than its factorization.

891373896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 498 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 891373896 is about 29855.8854499410. The cubic root of 891373896 is about 962.3948799797.

The spelling of 891373896 in words is "eight hundred ninety-one million, three hundred seventy-three thousand, eight hundred ninety-six".