679528404 has 36 divisors (see below), whose sum is σ = 1734712980. Its totient is φ = 224265600.

The previous prime is 679528391. The next prime is 679528411. The reversal of 679528404 is 404825976.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 353364804 + 326163600 = 18798^2 + 18060^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 679528404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89809 + ... + 97080.

Almost surely, 2^679528404 is an apocalyptic number.

It is an amenable number.

679528404 is an abundant number, since it is smaller than the sum of its proper divisors (1055184576).

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

679528404 is a wasteful number, since it uses less digits than its factorization.

679528404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187000 (or 186995 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 679528404 is about 26067.7656119584. The cubic root of 679528404 is about 879.1626004299.

The spelling of 679528404 in words is "six hundred seventy-nine million, five hundred twenty-eight thousand, four hundred four".