979749605 has 4 divisors (see below), whose sum is σ = 1175699532. Its totient is φ = 783799680.

The previous prime is 979749577. The next prime is 979749613. The reversal of 979749605 is 506947979.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 723717604 + 256032001 = 26902^2 + 16001^2 .

It is not a de Polignac number, because 979749605 - 2⁶ = 979749541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97974956 + ... + 97974965.

It is an arithmetic number, because the mean of its divisors is an integer number (293924883).

Almost surely, 2^979749605 is an apocalyptic number.

It is an amenable number.

979749605 is a deficient number, since it is larger than the sum of its proper divisors (195949927).

979749605 is a wasteful number, since it uses less digits than its factorization.

979749605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195949926.

The product of its (nonzero) digits is 4286520, while the sum is 56.

The square root of 979749605 is about 31300.9521420675. The cubic root of 979749605 is about 993.2037844229.

The spelling of 979749605 in words is "nine hundred seventy-nine million, seven hundred forty-nine thousand, six hundred five".