681002722 has 8 divisors (see below), whose sum is σ = 1065917376. Its totient is φ = 325696932.

The previous prime is 681002717. The next prime is 681002771. The reversal of 681002722 is 227200186.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 7402158 + ... + 7402249.

It is an arithmetic number, because the mean of its divisors is an integer number (133239672).

Almost surely, 2^681002722 is an apocalyptic number.

681002722 is a deficient number, since it is larger than the sum of its proper divisors (384914654).

681002722 is a wasteful number, since it uses less digits than its factorization.

681002722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14804432.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 681002722 is about 26096.0288549810. The cubic root of 681002722 is about 879.7979572314.

The spelling of 681002722 in words is "six hundred eighty-one million, two thousand, seven hundred twenty-two".