679247120 has 20 divisors (see below), whose sum is σ = 1579249740. Its totient is φ = 271698816.

The previous prime is 679247089. The next prime is 679247141. The reversal of 679247120 is 21742976.

It can be written as a sum of positive squares in 2 ways, for example, as 305830144 + 373416976 = 17488^2 + 19324^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×679247120² = 922753300056588800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4245215 + ... + 4245374.

It is an arithmetic number, because the mean of its divisors is an integer number (78962487).

Almost surely, 2^679247120 is an apocalyptic number.

It is an amenable number.

679247120 is an abundant number, since it is smaller than the sum of its proper divisors (900002620).

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

679247120 is a wasteful number, since it uses less digits than its factorization.

679247120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8490602 (or 8490596 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 679247120 is about 26062.3698078283. The cubic root of 679247120 is about 879.0412768272.

The spelling of 679247120 in words is "six hundred seventy-nine million, two hundred forty-seven thousand, one hundred twenty".