684573996 has 24 divisors (see below), whose sum is σ = 1603974064. Its totient is φ = 227243520.

The previous prime is 684573983. The next prime is 684573997. The reversal of 684573996 is 699375486.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (684573997) 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, 115465 + ... + 121248.

Almost surely, 2^684573996 is an apocalyptic number.

It is an amenable number.

684573996 is an abundant number, since it is smaller than the sum of its proper divisors (919400068).

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

684573996 is a wasteful number, since it uses less digits than its factorization.

684573996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236961 (or 236959 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 57.

The square root of 684573996 is about 26164.3650028049. The cubic root of 684573996 is about 881.3332047187. Note that the first 3 decimals are identical.

The spelling of 684573996 in words is "six hundred eighty-four million, five hundred seventy-three thousand, nine hundred ninety-six".