684089272 has 16 divisors (see below), whose sum is σ = 1289316240. Its totient is φ = 340271616.

The previous prime is 684089269. The next prime is 684089291. The reversal of 684089272 is 272980486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219988 + ... + 223075.

It is an arithmetic number, because the mean of its divisors is an integer number (80582265).

Almost surely, 2^684089272 is an apocalyptic number.

It is an amenable number.

684089272 is a deficient number, since it is larger than the sum of its proper divisors (605226968).

684089272 is a wasteful number, since it uses less digits than its factorization.

684089272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443262 (or 443258 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 684089272 is about 26155.1003056765. The cubic root of 684089272 is about 881.1251413936.

The spelling of 684089272 in words is "six hundred eighty-four million, eighty-nine thousand, two hundred seventy-two".