680669325 has 120 divisors (see below), whose sum is σ = 1488396800. Its totient is φ = 300931200.

The previous prime is 680669323. The next prime is 680669347. The reversal of 680669325 is 523966086.

It is a happy number.

It is not a de Polignac number, because 680669325 - 2¹ = 680669323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680669321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 438651 + ... + 440199.

Almost surely, 2^680669325 is an apocalyptic number.

It is an amenable number.

680669325 is an abundant number, since it is smaller than the sum of its proper divisors (807727475).

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

680669325 is a wasteful number, since it uses less digits than its factorization.

680669325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609 (or 1595 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 680669325 is about 26089.6401853303. The cubic root of 680669325 is about 879.6543602138.

The spelling of 680669325 in words is "six hundred eighty million, six hundred sixty-nine thousand, three hundred twenty-five".