679131516 has 48 divisors (see below), whose sum is σ = 1906338560. Its totient is φ = 183824640.

The previous prime is 679131463. The next prime is 679131527. The reversal of 679131516 is 615131976.

It is a happy number.

It is a super-2 number, since 2×679131516² = 922439232048916512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211165 + ... + 214356.

Almost surely, 2^679131516 is an apocalyptic number.

It is an amenable number.

679131516 is an abundant number, since it is smaller than the sum of its proper divisors (1227207044).

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

679131516 is a wasteful number, since it uses less digits than its factorization.

679131516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425554 (or 425552 counting only the distinct ones).

The product of its digits is 34020, while the sum is 39.

The square root of 679131516 is about 26060.1518798337. The cubic root of 679131516 is about 878.9914047210.

The spelling of 679131516 in words is "six hundred seventy-nine million, one hundred thirty-one thousand, five hundred sixteen".