684564382 has 16 divisors (see below), whose sum is σ = 1060912512. Its totient is φ = 330946560.

The previous prime is 684564379. The next prime is 684564383. The reversal of 684564382 is 283465486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684564383) 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, 76158 + ... + 84670.

It is an arithmetic number, because the mean of its divisors is an integer number (66307032).

Almost surely, 2^684564382 is an apocalyptic number.

684564382 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

684564382 is a deficient number, since it is larger than the sum of its proper divisors (376348130).

684564382 is a wasteful number, since it uses less digits than its factorization.

684564382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9843.

The product of its digits is 1105920, while the sum is 46.

The square root of 684564382 is about 26164.1812789929. The cubic root of 684564382 is about 881.3290789523.

The spelling of 684564382 in words is "six hundred eighty-four million, five hundred sixty-four thousand, three hundred eighty-two".