684745352 has 32 divisors (see below), whose sum is σ = 1314079200. Its totient is φ = 334418304.

The previous prime is 684745343. The next prime is 684745367. The reversal of 684745352 is 253547486.

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, 53303 + ... + 64889.

It is an arithmetic number, because the mean of its divisors is an integer number (41064975).

Almost surely, 2^684745352 is an apocalyptic number.

It is an amenable number.

684745352 is a deficient number, since it is larger than the sum of its proper divisors (629333848).

684745352 is a wasteful number, since it uses less digits than its factorization.

684745352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11765 (or 11761 counting only the distinct ones).

The product of its digits is 806400, while the sum is 44.

The square root of 684745352 is about 26167.6394044247. The cubic root of 684745352 is about 881.4067342102.

The spelling of 684745352 in words is "six hundred eighty-four million, seven hundred forty-five thousand, three hundred fifty-two".