679069625 has 32 divisors (see below), whose sum is σ = 915576480. Its totient is φ = 499872000.

The previous prime is 679069619. The next prime is 679069637. The reversal of 679069625 is 526960976.

It can be written as a sum of positive squares in 16 ways, for example, as 561737401 + 117332224 = 23701^2 + 10832^2 .

It is not a de Polignac number, because 679069625 - 2⁴ = 679069609 is a prime.

It is a super-2 number, since 2×679069625² = 922271111195281250, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 826715 + ... + 827535.

It is an arithmetic number, because the mean of its divisors is an integer number (28611765).

Almost surely, 2^679069625 is an apocalyptic number.

679069625 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

679069625 is a deficient number, since it is larger than the sum of its proper divisors (236506855).

679069625 is a wasteful number, since it uses less digits than its factorization.

679069625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358 (or 1348 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 50.

The square root of 679069625 is about 26058.9643884787. The cubic root of 679069625 is about 878.9647023281.

The spelling of 679069625 in words is "six hundred seventy-nine million, sixty-nine thousand, six hundred twenty-five".