681302794 has 16 divisors (see below), whose sum is σ = 1049483520. Its totient is φ = 331596720.

The previous prime is 681302767. The next prime is 681302813. The reversal of 681302794 is 497203186.

681302794 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×681302794² = 928346994224412872, which contains 22 as substring.

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, 19149 + ... + 41584.

It is an arithmetic number, because the mean of its divisors is an integer number (65592720).

Almost surely, 2^681302794 is an apocalyptic number.

681302794 is a deficient number, since it is larger than the sum of its proper divisors (368180726).

681302794 is a wasteful number, since it uses less digits than its factorization.

681302794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60885.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 681302794 is about 26101.7776023013. Note that the first 3 decimals coincide. The cubic root of 681302794 is about 879.9271608100.

The spelling of 681302794 in words is "six hundred eighty-one million, three hundred two thousand, seven hundred ninety-four".