679868125 has 10 divisors (see below), whose sum is σ = 849563990. Its totient is φ = 543894000.

The previous prime is 679868093. The next prime is 679868183. The reversal of 679868125 is 521868976.

It can be written as a sum of positive squares in 5 ways, for example, as 70123876 + 609744249 = 8374^2 + 24693^2 .

It is not a de Polignac number, because 679868125 - 2⁵ = 679868093 is a prime.

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 9 ways as a sum of consecutive naturals, for example, 543270 + ... + 544519.

It is an arithmetic number, because the mean of its divisors is an integer number (84956399).

Almost surely, 2^679868125 is an apocalyptic number.

It is an amenable number.

679868125 is a deficient number, since it is larger than the sum of its proper divisors (169695865).

679868125 is an equidigital number, since it uses as much as digits as its factorization.

679868125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087809 (or 1087794 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 52.

The square root of 679868125 is about 26074.2809105064. The cubic root of 679868125 is about 879.3090844905.

The spelling of 679868125 in words is "six hundred seventy-nine million, eight hundred sixty-eight thousand, one hundred twenty-five".