681307286 has 16 divisors (see below), whose sum is σ = 1119115008. Its totient is φ = 308505000.

The previous prime is 681307273. The next prime is 681307327. The reversal of 681307286 is 682703186.

It is a happy number.

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, 53090 + ... + 64661.

It is an arithmetic number, because the mean of its divisors is an integer number (69944688).

Almost surely, 2^681307286 is an apocalyptic number.

681307286 is a deficient number, since it is larger than the sum of its proper divisors (437807722).

681307286 is a wasteful number, since it uses less digits than its factorization.

681307286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118027.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 681307286 is about 26101.8636499389. The cubic root of 681307286 is about 879.9290946658.

The spelling of 681307286 in words is "six hundred eighty-one million, three hundred seven thousand, two hundred eighty-six".