679120984 has 8 divisors (see below), whose sum is σ = 1273351860. Its totient is φ = 339560488.

The previous prime is 679120979. The next prime is 679120993. The reversal of 679120984 is 489021976.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×679120984² = 922410621818256512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42445054 + ... + 42445069.

Almost surely, 2^679120984 is an apocalyptic number.

It is an amenable number.

679120984 is a deficient number, since it is larger than the sum of its proper divisors (594230876).

679120984 is a wasteful number, since it uses less digits than its factorization.

679120984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84890129 (or 84890125 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 679120984 is about 26059.9498080867. The cubic root of 679120984 is about 878.9868608857.

The spelling of 679120984 in words is "six hundred seventy-nine million, one hundred twenty thousand, nine hundred eighty-four".