776320704 has 84 divisors (see below), whose sum is σ = 2229642480. Its totient is φ = 258255360.

The previous prime is 776320703. The next prime is 776320711. The reversal of 776320704 is 407023677.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (776320703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 379717 + ... + 381755.

Almost surely, 2^776320704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 776320704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1114821240).

776320704 is an abundant number, since it is smaller than the sum of its proper divisors (1453321776).

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

776320704 is a wasteful number, since it uses less digits than its factorization.

776320704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2718 (or 2705 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 776320704 is about 27862.5322610850. The cubic root of 776320704 is about 919.0667536998.

The spelling of 776320704 in words is "seven hundred seventy-six million, three hundred twenty thousand, seven hundred four".