680572536 has 64 divisors (see below), whose sum is σ = 1946611200. Its totient is φ = 194237568.

The previous prime is 680572531. The next prime is 680572579. The reversal of 680572536 is 635275086.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680572531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217350 + ... + 220458.

It is an arithmetic number, because the mean of its divisors is an integer number (30415800).

Almost surely, 2^680572536 is an apocalyptic number.

It is an amenable number.

680572536 is an abundant number, since it is smaller than the sum of its proper divisors (1266038664).

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

680572536 is a wasteful number, since it uses less digits than its factorization.

680572536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4428 (or 4424 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The square root of 680572536 is about 26087.7851877081. The cubic root of 680572536 is about 879.6126635590.

The spelling of 680572536 in words is "six hundred eighty million, five hundred seventy-two thousand, five hundred thirty-six".