913921056 has 120 divisors (see below), whose sum is σ = 2700737424. Its totient is φ = 304430400.

The previous prime is 913920991. The next prime is 913921067. The reversal of 913921056 is 650129319.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 913921056.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 629131 + ... + 630581.

Almost surely, 2^913921056 is an apocalyptic number.

913921056 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 913921056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1350368712).

913921056 is an abundant number, since it is smaller than the sum of its proper divisors (1786816368).

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

913921056 is an frugal number, since it uses more digits than its factorization.

913921056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488 (or 1456 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 913921056 is about 30231.1272697529. The cubic root of 913921056 is about 970.4419483251.

The spelling of 913921056 in words is "nine hundred thirteen million, nine hundred twenty-one thousand, fifty-six".