679536625 has 8 divisors (see below), whose sum is σ = 848061864. Its totient is φ = 543629200.

The previous prime is 679536617. The next prime is 679536757. The reversal of 679536625 is 526635976.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 829921 + 678706704 = 911^2 + 26052^2 .

It is not a de Polignac number, because 679536625 - 2³ = 679536617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2718022 + ... + 2718271.

It is an arithmetic number, because the mean of its divisors is an integer number (106007733).

Almost surely, 2^679536625 is an apocalyptic number.

It is an amenable number.

679536625 is a deficient number, since it is larger than the sum of its proper divisors (168525239).

679536625 is an equidigital number, since it uses as much as digits as its factorization.

679536625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5436308 (or 5436298 counting only the distinct ones).

The product of its digits is 2041200, while the sum is 49.

The square root of 679536625 is about 26067.9232966495. The cubic root of 679536625 is about 879.1661458135.

The spelling of 679536625 in words is "six hundred seventy-nine million, five hundred thirty-six thousand, six hundred twenty-five".