979887680 has 56 divisors (see below), whose sum is σ = 2408651520. Its totient is φ = 379307520.

The previous prime is 979887679. The next prime is 979887683. The reversal of 979887680 is 86788979.

979887680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is not an unprimeable number, because it can be changed into a prime (979887683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39470 + ... + 59309.

Almost surely, 2^979887680 is an apocalyptic number.

It is an amenable number.

979887680 is an abundant number, since it is smaller than the sum of its proper divisors (1428763840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

979887680 is a wasteful number, since it uses less digits than its factorization.

979887680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98827 (or 98817 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 62.

The square root of 979887680 is about 31303.1576681970. The cubic root of 979887680 is about 993.2504392587.

The spelling of 979887680 in words is "nine hundred seventy-nine million, eight hundred eighty-seven thousand, six hundred eighty".