776899380 has 48 divisors (see below), whose sum is σ = 2187501120. Its totient is φ = 206012928.

The previous prime is 776899369. The next prime is 776899393. The reversal of 776899380 is 83998677.

776899380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 776899380.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25429 + ... + 46908.

It is an arithmetic number, because the mean of its divisors is an integer number (45572940).

Almost surely, 2^776899380 is an apocalyptic number.

It is an amenable number.

776899380 is an abundant number, since it is smaller than the sum of its proper divisors (1410601740).

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

776899380 is a wasteful number, since it uses less digits than its factorization.

776899380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72528 (or 72526 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 57.

The square root of 776899380 is about 27872.9148099010. The cubic root of 776899380 is about 919.2950570192.

The spelling of 776899380 in words is "seven hundred seventy-six million, eight hundred ninety-nine thousand, three hundred eighty".