779875 has 16 divisors (see below), whose sum is σ = 1033344. Its totient is φ = 585600.

The previous prime is 779873. The next prime is 779879. The reversal of 779875 is 578977.

It is not a de Polignac number, because 779875 - 2¹ = 779873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (779873) 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, 1942 + ... + 2308.

It is an arithmetic number, because the mean of its divisors is an integer number (64584).

2⁷⁷⁹⁸⁷⁵ is an apocalyptic number.

779875 is a deficient number, since it is larger than the sum of its proper divisors (253469).

779875 is a wasteful number, since it uses less digits than its factorization.

779875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 389 counting only the distinct ones).

The product of its digits is 123480, while the sum is 43.

The square root of 779875 is about 883.1053164827. The cubic root of 779875 is about 92.0467232740.

The spelling of 779875 in words is "seven hundred seventy-nine thousand, eight hundred seventy-five".