683855980 has 24 divisors (see below), whose sum is σ = 1511682480. Its totient is φ = 259145280.

The previous prime is 683855971. The next prime is 683855983. The reversal of 683855980 is 89558386.

It is a happy number.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (683855983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 899431 + ... + 900190.

It is an arithmetic number, because the mean of its divisors is an integer number (62986770).

Almost surely, 2^683855980 is an apocalyptic number.

It is an amenable number.

683855980 is an abundant number, since it is smaller than the sum of its proper divisors (827826500).

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

683855980 is a wasteful number, since it uses less digits than its factorization.

683855980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799649 (or 1799647 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 52.

The square root of 683855980 is about 26150.6401451284. The cubic root of 683855980 is about 881.0249679093.

The spelling of 683855980 in words is "six hundred eighty-three million, eight hundred fifty-five thousand, nine hundred eighty".