679312550 has 24 divisors (see below), whose sum is σ = 1444025136. Its totient is φ = 232907040.

The previous prime is 679312541. The next prime is 679312553. The reversal of 679312550 is 55213976.

It is a happy number.

It is a super-2 number, since 2×679312550² = 922931081175005000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679312553) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 970097 + ... + 970796.

It is an arithmetic number, because the mean of its divisors is an integer number (60167714).

Almost surely, 2^679312550 is an apocalyptic number.

679312550 is an abundant number, since it is smaller than the sum of its proper divisors (764712586).

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

679312550 is a wasteful number, since it uses less digits than its factorization.

679312550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940912 (or 1940907 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 679312550 is about 26063.6250356699. The cubic root of 679312550 is about 879.0695011275.

The spelling of 679312550 in words is "six hundred seventy-nine million, three hundred twelve thousand, five hundred fifty".