679715760 has 80 divisors (see below), whose sum is σ = 2231080416. Its totient is φ = 170594304.

The previous prime is 679715693. The next prime is 679715767. The reversal of 679715760 is 67517976.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (679715767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79219 + ... + 87378.

Almost surely, 2^679715760 is an apocalyptic number.

679715760 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

679715760 is an abundant number, since it is smaller than the sum of its proper divisors (1551364656).

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

679715760 is a wasteful number, since it uses less digits than its factorization.

679715760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166630 (or 166624 counting only the distinct ones).

The product of its (nonzero) digits is 555660, while the sum is 48.

The square root of 679715760 is about 26071.3589979502. The cubic root of 679715760 is about 879.2433923690.

The spelling of 679715760 in words is "six hundred seventy-nine million, seven hundred fifteen thousand, seven hundred sixty".