979644 has 12 divisors (see below), whose sum is σ = 2285864. Its totient is φ = 326544.

The previous prime is 979567. The next prime is 979651. The reversal of 979644 is 446979.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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, 40807 + ... + 40830.

2⁹⁷⁹⁶⁴⁴ is an apocalyptic number.

It is an amenable number.

979644 is an abundant number, since it is smaller than the sum of its proper divisors (1306220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

979644 is a wasteful number, since it uses less digits than its factorization.

979644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81644 (or 81642 counting only the distinct ones).

The product of its digits is 54432, while the sum is 39.

The square root of 979644 is about 989.7696701758. The cubic root of 979644 is about 99.3168098076.

The spelling of 979644 in words is "nine hundred seventy-nine thousand, six hundred forty-four".