785979 has 12 divisors (see below), whose sum is σ = 1184976. Its totient is φ = 501072.

The previous prime is 785963. The next prime is 786001. The reversal of 785979 is 979587.

It is not a de Polignac number, because 785979 - 2⁴ = 785963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (785579) 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, 1692 + ... + 2105.

It is an arithmetic number, because the mean of its divisors is an integer number (98748).

2⁷⁸⁵⁹⁷⁹ is an apocalyptic number.

785979 is a deficient number, since it is larger than the sum of its proper divisors (398997).

785979 is a wasteful number, since it uses less digits than its factorization.

785979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3826 (or 3823 counting only the distinct ones).

The product of its digits is 158760, while the sum is 45.

The square root of 785979 is about 886.5545668485. The cubic root of 785979 is about 92.2862461395.

It can be divided in two parts, 78597 and 9, that added together give a triangular number (78606 = T₃₉₆).

The spelling of 785979 in words is "seven hundred eighty-five thousand, nine hundred seventy-nine".