684363132 has 18 divisors (see below), whose sum is σ = 1729918008. Its totient is φ = 228121032.

The previous prime is 684363131. The next prime is 684363191. The reversal of 684363132 is 231363486.

684363132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 19010087 = 684363132 / (6 + 8 + 4 + 3 + 6 + 3 + 1 + 3 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684363131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9505008 + ... + 9505079.

It is an arithmetic number, because the mean of its divisors is an integer number (96106556).

Almost surely, 2^684363132 is an apocalyptic number.

It is an amenable number.

684363132 is an abundant number, since it is smaller than the sum of its proper divisors (1045554876).

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

684363132 is a wasteful number, since it uses less digits than its factorization.

684363132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19010097 (or 19010092 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 684363132 is about 26160.3350895970. The cubic root of 684363132 is about 881.2427053569.

The spelling of 684363132 in words is "six hundred eighty-four million, three hundred sixty-three thousand, one hundred thirty-two".