979476687 has 18 divisors (see below), whose sum is σ = 1617324072. Its totient is φ = 559559016.

The previous prime is 979476679. The next prime is 979476703. The reversal of 979476687 is 786674979.

979476687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 979476687 - 2³ = 979476679 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979476677) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 246438 + ... + 250380.

Almost surely, 2^979476687 is an apocalyptic number.

979476687 is a deficient number, since it is larger than the sum of its proper divisors (637847385).

979476687 is an frugal number, since it uses more digits than its factorization.

979476687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7899 (or 3953 counting only the distinct ones).

The product of its digits is 32006016, while the sum is 63.

The square root of 979476687 is about 31296.5922585830. The cubic root of 979476687 is about 993.1115539313. Note that the first 3 decimals are identical.

Multiplying 979476687 by its sum of digits (63), we get a square (61707031281 = 248409²).

979476687 divided by its sum of digits (63) gives a square (15547249 = 3943²).

The spelling of 979476687 in words is "nine hundred seventy-nine million, four hundred seventy-six thousand, six hundred eighty-seven".