891472740 has 48 divisors (see below), whose sum is σ = 2504306112. Its totient is φ = 236946816.

The previous prime is 891472739. The next prime is 891472753. The reversal of 891472740 is 47274198.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 891472692 and 891472701.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5779 + ... + 42618.

It is an arithmetic number, because the mean of its divisors is an integer number (52173044).

Almost surely, 2^891472740 is an apocalyptic number.

It is an amenable number.

891472740 is an abundant number, since it is smaller than the sum of its proper divisors (1612833372).

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

891472740 is a wasteful number, since it uses less digits than its factorization.

891472740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48716 (or 48714 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 891472740 is about 29857.5407560636. The cubic root of 891472740 is about 962.4304518252.

The spelling of 891472740 in words is "eight hundred ninety-one million, four hundred seventy-two thousand, seven hundred forty".