779679 has 16 divisors (see below), whose sum is σ = 1175040. Its totient is φ = 510840.

The previous prime is 779663. The next prime is 779693. The reversal of 779679 is 976977.

It is not a de Polignac number, because 779679 - 2⁴ = 779663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (779609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1594 + ... + 2024.

It is an arithmetic number, because the mean of its divisors is an integer number (73440).

2⁷⁷⁹⁶⁷⁹ is an apocalyptic number.

779679 is a deficient number, since it is larger than the sum of its proper divisors (395361).

779679 is a wasteful number, since it uses less digits than its factorization.

779679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507 (or 501 counting only the distinct ones).

The product of its digits is 166698, while the sum is 45.

The square root of 779679 is about 882.9943374677. The cubic root of 779679 is about 92.0390114956.

It can be divided in two parts, 7796 and 79, that added together give a triangular number (7875 = T₁₂₅).

The spelling of 779679 in words is "seven hundred seventy-nine thousand, six hundred seventy-nine".