777776996 has 12 divisors (see below), whose sum is σ = 1441175148. Its totient is φ = 366012672.

The previous prime is 777776977. The next prime is 777777019. The reversal of 777776996 is 699677777.

It can be written as a sum of positive squares in 2 ways, for example, as 267649600 + 510127396 = 16360^2 + 22586^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5718881 + ... + 5719016.

It is an arithmetic number, because the mean of its divisors is an integer number (120097929).

Almost surely, 2^777776996 is an apocalyptic number.

It is an amenable number.

777776996 is a deficient number, since it is larger than the sum of its proper divisors (663398152).

777776996 is a wasteful number, since it uses less digits than its factorization.

777776996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11437918 (or 11437916 counting only the distinct ones).

The product of its digits is 49009212, while the sum is 65.

The square root of 777776996 is about 27888.6535350848. The cubic root of 777776996 is about 919.6410840033.

The spelling of 777776996 in words is "seven hundred seventy-seven million, seven hundred seventy-six thousand, nine hundred ninety-six".