684674436 has 24 divisors (see below), whose sum is σ = 1599411744. Its totient is φ = 227962240.

The previous prime is 684674429. The next prime is 684674437. The reversal of 684674436 is 634476486.

It is a hoax number, since the sum of its digits (48) 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 (684674437) 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, 21810 + ... + 42953.

It is an arithmetic number, because the mean of its divisors is an integer number (66642156).

Almost surely, 2^684674436 is an apocalyptic number.

It is an amenable number.

684674436 is an abundant number, since it is smaller than the sum of its proper divisors (914737308).

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

684674436 is a wasteful number, since it uses less digits than its factorization.

684674436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65651 (or 65649 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 48.

The square root of 684674436 is about 26166.2843369096. The cubic root of 684674436 is about 881.3763053811.

The spelling of 684674436 in words is "six hundred eighty-four million, six hundred seventy-four thousand, four hundred thirty-six".