779577696 has 120 divisors (see below), whose sum is σ = 2327454360. Its totient is φ = 255980736.

The previous prime is 779577683. The next prime is 779577707. The reversal of 779577696 is 696775977.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11635455 + ... + 11635521.

It is an arithmetic number, because the mean of its divisors is an integer number (19395453).

Almost surely, 2^779577696 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 779577696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1163727180).

779577696 is an abundant number, since it is smaller than the sum of its proper divisors (1547876664).

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

779577696 is an frugal number, since it uses more digits than its factorization.

779577696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 72 counting only the distinct ones).

The product of its digits is 35006580, while the sum is 63.

The square root of 779577696 is about 27920.9186095300. The cubic root of 779577696 is about 920.3502510129.

It can be divided in two parts, 7795 and 77696, that added together give a triangular number (85491 = T₄₁₃).

The spelling of 779577696 in words is "seven hundred seventy-nine million, five hundred seventy-seven thousand, six hundred ninety-six".