979775 has 6 divisors (see below), whose sum is σ = 1214952. Its totient is φ = 783800.

The previous prime is 979757. The next prime is 979787. The reversal of 979775 is 577979.

It is not a de Polignac number, because 979775 - 2⁸ = 979519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19571 + ... + 19620.

It is an arithmetic number, because the mean of its divisors is an integer number (202492).

2⁹⁷⁹⁷⁷⁵ is an apocalyptic number.

979775 is a deficient number, since it is larger than the sum of its proper divisors (235177).

979775 is a wasteful number, since it uses less digits than its factorization.

979775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39201 (or 39196 counting only the distinct ones).

The product of its digits is 138915, while the sum is 44.

The square root of 979775 is about 989.8358449763. The cubic root of 979775 is about 99.3212365592.

The spelling of 979775 in words is "nine hundred seventy-nine thousand, seven hundred seventy-five".