684147352 has 32 divisors (see below), whose sum is σ = 1516586400. Its totient is φ = 283094784.

The previous prime is 684147311. The next prime is 684147367. The reversal of 684147352 is 253741486.

It is a super-2 number, since 2×684147352² = 936115198497223808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209013 + ... + 212260.

It is an arithmetic number, because the mean of its divisors is an integer number (47393325).

Almost surely, 2^684147352 is an apocalyptic number.

It is an amenable number.

684147352 is an abundant number, since it is smaller than the sum of its proper divisors (832439048).

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

684147352 is a wasteful number, since it uses less digits than its factorization.

684147352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421315 (or 421311 counting only the distinct ones).

The product of its digits is 161280, while the sum is 40.

The square root of 684147352 is about 26156.2105818102. The cubic root of 684147352 is about 881.1500768819.

The spelling of 684147352 in words is "six hundred eighty-four million, one hundred forty-seven thousand, three hundred fifty-two".