684197132 has 6 divisors (see below), whose sum is σ = 1197344988. Its totient is φ = 342098564.

The previous prime is 684197119. The next prime is 684197141. The reversal of 684197132 is 231791486.

It is a self number, because there is not a number n which added to its sum of digits gives 684197132.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85524638 + ... + 85524645.

It is an arithmetic number, because the mean of its divisors is an integer number (199557498).

Almost surely, 2^684197132 is an apocalyptic number.

It is an amenable number.

684197132 is a deficient number, since it is larger than the sum of its proper divisors (513147856).

684197132 is a wasteful number, since it uses less digits than its factorization.

684197132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171049287 (or 171049285 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 684197132 is about 26157.1621549433. The cubic root of 684197132 is about 881.1714478077.

The spelling of 684197132 in words is "six hundred eighty-four million, one hundred ninety-seven thousand, one hundred thirty-two".