679206925 has 12 divisors (see below), whose sum is σ = 858109140. Its totient is φ = 533112320.

The previous prime is 679206923. The next prime is 679206937. The reversal of 679206925 is 529602976.

It can be written as a sum of positive squares in 6 ways, for example, as 10156969 + 669049956 = 3187^2 + 25866^2 .

It is not a de Polignac number, because 679206925 - 2¹ = 679206923 is a prime.

It is a super-2 number, since 2×679206925² = 922644093935911250, which contains 22 as substring.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679206923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 254980 + ... + 257629.

It is an arithmetic number, because the mean of its divisors is an integer number (71509095).

Almost surely, 2^679206925 is an apocalyptic number.

It is an amenable number.

679206925 is a deficient number, since it is larger than the sum of its proper divisors (178902215).

679206925 is a wasteful number, since it uses less digits than its factorization.

679206925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512672 (or 512667 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 679206925 is about 26061.5986654695. The cubic root of 679206925 is about 879.0239371580.

The spelling of 679206925 in words is "six hundred seventy-nine million, two hundred six thousand, nine hundred twenty-five".