891006976 has 78 divisors (see below), whose sum is σ = 1893267740. Its totient is φ = 418111488.

The previous prime is 891006971. The next prime is 891006997. The reversal of 891006976 is 679600198.

It is not an unprimeable number, because it can be changed into a prime (891006971) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 8327115 + ... + 8327221.

Almost surely, 2^891006976 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 891006976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (946633870).

891006976 is an abundant number, since it is smaller than the sum of its proper divisors (1002260764).

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

891006976 is an equidigital number, since it uses as much as digits as its factorization.

891006976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 891006976 is about 29849.7399653665. The cubic root of 891006976 is about 962.2628103008.

The spelling of 891006976 in words is "eight hundred ninety-one million, six thousand, nine hundred seventy-six".