979642 has 8 divisors (see below), whose sum is σ = 1555956. Its totient is φ = 460992.

The previous prime is 979567. The next prime is 979651. The reversal of 979642 is 246979.

It can be written as a sum of positive squares in 2 ways, for example, as 978121 + 1521 = 989^2 + 39^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 14373 + ... + 14440.

2⁹⁷⁹⁶⁴² is an apocalyptic number.

979642 is a deficient number, since it is larger than the sum of its proper divisors (576314).

979642 is a wasteful number, since it uses less digits than its factorization.

979642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28832.

The product of its digits is 27216, while the sum is 37.

The square root of 979642 is about 989.7686598393. The cubic root of 979642 is about 99.3167422205.

The spelling of 979642 in words is "nine hundred seventy-nine thousand, six hundred forty-two".