776807412 has 12 divisors (see below), whose sum is σ = 1812550656. Its totient is φ = 258935800.

The previous prime is 776807407. The next prime is 776807413. The reversal of 776807412 is 214708677.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (776807413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32366964 + ... + 32366987.

It is an arithmetic number, because the mean of its divisors is an integer number (151045888).

Almost surely, 2^776807412 is an apocalyptic number.

It is an amenable number.

776807412 is an abundant number, since it is smaller than the sum of its proper divisors (1035743244).

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

776807412 is a wasteful number, since it uses less digits than its factorization.

776807412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64733958 (or 64733956 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 42.

The square root of 776807412 is about 27871.2649874382. The cubic root of 776807412 is about 919.2587807367.

The spelling of 776807412 in words is "seven hundred seventy-six million, eight hundred seven thousand, four hundred twelve".