774797056 has 72 divisors (see below), whose sum is σ = 1693609344. Its totient is φ = 350837760.

The previous prime is 774797047. The next prime is 774797077. The reversal of 774797056 is 650797477.

It is a junction number, because it is equal to n+sod(n) for n = 774796994 and 774797012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1416175 + ... + 1416721.

It is an arithmetic number, because the mean of its divisors is an integer number (23522352).

Almost surely, 2^774797056 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 774797056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (846804672).

774797056 is an abundant number, since it is smaller than the sum of its proper divisors (918812288).

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

774797056 is a wasteful number, since it uses less digits than its factorization.

774797056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077 (or 1063 counting only the distinct ones).

The product of its (nonzero) digits is 2593080, while the sum is 52.

The square root of 774797056 is about 27835.1765936557. The cubic root of 774797056 is about 918.4650902646.

The spelling of 774797056 in words is "seven hundred seventy-four million, seven hundred ninety-seven thousand, fifty-six".