979669905 has 32 divisors (see below), whose sum is σ = 1661795328. Its totient is φ = 491961600.

The previous prime is 979669877. The next prime is 979669919. The reversal of 979669905 is 509966979.

It is not a de Polignac number, because 979669905 - 2²¹ = 977572753 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11266 + ... + 45675.

It is an arithmetic number, because the mean of its divisors is an integer number (51931104).

Almost surely, 2^979669905 is an apocalyptic number.

It is an amenable number.

979669905 is a deficient number, since it is larger than the sum of its proper divisors (682125423).

979669905 is a wasteful number, since it uses less digits than its factorization.

979669905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57017.

The product of its (nonzero) digits is 8266860, while the sum is 60.

The square root of 979669905 is about 31299.6789919641. The cubic root of 979669905 is about 993.1768522055.

The spelling of 979669905 in words is "nine hundred seventy-nine million, six hundred sixty-nine thousand, nine hundred five".