683320820 has 48 divisors (see below), whose sum is σ = 1766126208. Its totient is φ = 216259200.

The previous prime is 683320819. The next prime is 683320843. The reversal of 683320820 is 28023386.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185906 + ... + 189545.

It is an arithmetic number, because the mean of its divisors is an integer number (36794296).

Almost surely, 2^683320820 is an apocalyptic number.

It is an amenable number.

683320820 is an abundant number, since it is smaller than the sum of its proper divisors (1082805388).

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

683320820 is a wasteful number, since it uses less digits than its factorization.

683320820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375480 (or 375478 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 683320820 is about 26140.4058882030. The cubic root of 683320820 is about 880.7950889196.

The spelling of 683320820 in words is "six hundred eighty-three million, three hundred twenty thousand, eight hundred twenty".