776966900 has 18 divisors (see below), whose sum is σ = 1686018390. Its totient is φ = 310786720.

The previous prime is 776966899. The next prime is 776966921. The reversal of 776966900 is 9669677.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 146555236 + 630411664 = 12106^2 + 25108^2 .

It is a super-2 number, since 2×776966900² = 1207355127391220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3884735 + ... + 3884934.

Almost surely, 2^776966900 is an apocalyptic number.

It is an amenable number.

776966900 is an abundant number, since it is smaller than the sum of its proper divisors (909051490).

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

776966900 is a wasteful number, since it uses less digits than its factorization.

776966900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7769683 (or 7769676 counting only the distinct ones).

The product of its (nonzero) digits is 857304, while the sum is 50.

The square root of 776966900 is about 27874.1259952666. The cubic root of 776966900 is about 919.3216880973.

The spelling of 776966900 in words is "seven hundred seventy-six million, nine hundred sixty-six thousand, nine hundred".