680657410 has 16 divisors (see below), whose sum is σ = 1225481400. Its totient is φ = 272196736.

The previous prime is 680657401. The next prime is 680657437. The reversal of 680657410 is 14756086.

It can be written as a sum of positive squares in 4 ways, for example, as 340365601 + 340291809 = 18449^2 + 18447^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 680657410.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71406 + ... + 80374.

Almost surely, 2^680657410 is an apocalyptic number.

680657410 is a deficient number, since it is larger than the sum of its proper divisors (544823990).

680657410 is a wasteful number, since it uses less digits than its factorization.

680657410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16565.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 680657410 is about 26089.4118369886. The cubic root of 680657410 is about 879.6492274509.

The spelling of 680657410 in words is "six hundred eighty million, six hundred fifty-seven thousand, four hundred ten".