773815056 has 120 divisors (see below), whose sum is σ = 2400632064. Its totient is φ = 213937920.

The previous prime is 773815037. The next prime is 773815067. The reversal of 773815056 is 650518377.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 773814999 and 773815017.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67606 + ... + 78218.

Almost surely, 2^773815056 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 773815056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1200316032).

773815056 is an abundant number, since it is smaller than the sum of its proper divisors (1626817008).

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

773815056 is a wasteful number, since it uses less digits than its factorization.

773815056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10669 (or 10656 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 42.

The square root of 773815056 is about 27817.5314505080. The cubic root of 773815056 is about 918.0768965541.

The spelling of 773815056 in words is "seven hundred seventy-three million, eight hundred fifteen thousand, fifty-six".