979844385 has 48 divisors (see below), whose sum is σ = 1793606976. Its totient is φ = 453983232.

The previous prime is 979844353. The next prime is 979844387. The reversal of 979844385 is 583448979.

It is not a de Polignac number, because 979844385 - 2⁵ = 979844353 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (979844387) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47662 + ... + 65048.

It is an arithmetic number, because the mean of its divisors is an integer number (37366812).

Almost surely, 2^979844385 is an apocalyptic number.

It is an amenable number.

979844385 is a deficient number, since it is larger than the sum of its proper divisors (813762591).

979844385 is a wasteful number, since it uses less digits than its factorization.

979844385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17442 (or 17425 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 57.

The square root of 979844385 is about 31302.4661169052. The cubic root of 979844385 is about 993.2358105715.

The spelling of 979844385 in words is "nine hundred seventy-nine million, eight hundred forty-four thousand, three hundred eighty-five".