979617 has 4 divisors (see below), whose sum is σ = 1306160. Its totient is φ = 653076.

The previous prime is 979567. The next prime is 979651. The reversal of 979617 is 716979.

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.

It is not a de Polignac number, because 979617 - 2⁶ = 979553 is a prime.

It is a D-number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 979617.

It is not an unprimeable number, because it can be changed into a prime (979117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163267 + ... + 163272.

It is an arithmetic number, because the mean of its divisors is an integer number (326540).

2⁹⁷⁹⁶¹⁷ is an apocalyptic number.

It is an amenable number.

979617 is a deficient number, since it is larger than the sum of its proper divisors (326543).

979617 is a wasteful number, since it uses less digits than its factorization.

979617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326542.

The product of its digits is 23814, while the sum is 39.

The square root of 979617 is about 989.7560305449. The cubic root of 979617 is about 99.3158973746.

It can be divided in two parts, 979 and 617, that added together give a triangular number (1596 = T₅₆).

The spelling of 979617 in words is "nine hundred seventy-nine thousand, six hundred seventeen".