681714172 has 12 divisors (see below), whose sum is σ = 1197217336. Its totient is φ = 339652080.

The previous prime is 681714151. The next prime is 681714191. The reversal of 681714172 is 271417186.

It is a congruent number.

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, 299979 + ... + 302242.

Almost surely, 2^681714172 is an apocalyptic number.

It is an amenable number.

681714172 is a deficient number, since it is larger than the sum of its proper divisors (515503164).

681714172 is a wasteful number, since it uses less digits than its factorization.

681714172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602508 (or 602506 counting only the distinct ones).

The product of its digits is 18816, while the sum is 37.

The square root of 681714172 is about 26109.6566810060. The cubic root of 681714172 is about 880.1042283570.

The spelling of 681714172 in words is "six hundred eighty-one million, seven hundred fourteen thousand, one hundred seventy-two".