979538505 has 32 divisors (see below), whose sum is σ = 1713761280. Its totient is φ = 473810880.

The previous prime is 979538489. The next prime is 979538519. The reversal of 979538505 is 505835979.

It is not a de Polignac number, because 979538505 - 2⁴ = 979538489 is a prime.

It is a Curzon 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 31 ways as a sum of consecutive naturals, for example, 65674 + ... + 79196.

It is an arithmetic number, because the mean of its divisors is an integer number (53555040).

Almost surely, 2^979538505 is an apocalyptic number.

It is an amenable number.

979538505 is a deficient number, since it is larger than the sum of its proper divisors (734222775).

979538505 is a wasteful number, since it uses less digits than its factorization.

979538505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13981.

The product of its (nonzero) digits is 1701000, while the sum is 51.

The square root of 979538505 is about 31297.5798585130. The cubic root of 979538505 is about 993.1324463389.

The spelling of 979538505 in words is "nine hundred seventy-nine million, five hundred thirty-eight thousand, five hundred five".