774215968 has 24 divisors (see below), whose sum is σ = 1524863340. Its totient is φ = 386949120.

The previous prime is 774215957. The next prime is 774216011. The reversal of 774215968 is 869512477.

It can be written as a sum of positive squares in 2 ways, for example, as 520387344 + 253828624 = 22812^2 + 15932^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134428 + ... + 140068.

Almost surely, 2^774215968 is an apocalyptic number.

It is an amenable number.

774215968 is a deficient number, since it is larger than the sum of its proper divisors (750647372).

774215968 is a wasteful number, since it uses less digits than its factorization.

774215968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9940 (or 9932 counting only the distinct ones).

The product of its digits is 846720, while the sum is 49.

The square root of 774215968 is about 27824.7366204965. The cubic root of 774215968 is about 918.2354204352.

The spelling of 774215968 in words is "seven hundred seventy-four million, two hundred fifteen thousand, nine hundred sixty-eight".