684252932 has 12 divisors (see below), whose sum is σ = 1306301136. Its totient is φ = 311024040.

The previous prime is 684252911. The next prime is 684252979. The reversal of 684252932 is 239252486.

It is a self number, because there is not a number n which added to its sum of digits gives 684252932.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7775558 + ... + 7775645.

It is an arithmetic number, because the mean of its divisors is an integer number (108858428).

Almost surely, 2^684252932 is an apocalyptic number.

It is an amenable number.

684252932 is a deficient number, since it is larger than the sum of its proper divisors (622048204).

684252932 is a wasteful number, since it uses less digits than its factorization.

684252932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15551218 (or 15551216 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 684252932 is about 26158.2287626666. The cubic root of 684252932 is about 881.1954019324.

The spelling of 684252932 in words is "six hundred eighty-four million, two hundred fifty-two thousand, nine hundred thirty-two".