979577 has 4 divisors (see below), whose sum is σ = 996240. Its totient is φ = 962916.

The previous prime is 979567. The next prime is 979651. The reversal of 979577 is 775979.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 775979 = 19 ⋅40841.

It is a cyclic number.

It is not a de Polignac number, because 979577 - 2¹⁶ = 914041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (979567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8243 + ... + 8360.

It is an arithmetic number, because the mean of its divisors is an integer number (249060).

2⁹⁷⁹⁵⁷⁷ is an apocalyptic number.

It is an amenable number.

979577 is a deficient number, since it is larger than the sum of its proper divisors (16663).

979577 is a wasteful number, since it uses less digits than its factorization.

979577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16662.

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

The square root of 979577 is about 989.7358233387. The cubic root of 979577 is about 99.3145455912.

The spelling of 979577 in words is "nine hundred seventy-nine thousand, five hundred seventy-seven".