681716230 has 16 divisors (see below), whose sum is σ = 1321480944. Its totient is φ = 251710560.

The previous prime is 681716213. The next prime is 681716249. The reversal of 681716230 is 32617186.

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, 2621856 + ... + 2622115.

It is an arithmetic number, because the mean of its divisors is an integer number (82592559).

Almost surely, 2^681716230 is an apocalyptic number.

681716230 is a deficient number, since it is larger than the sum of its proper divisors (639764714).

681716230 is a wasteful number, since it uses less digits than its factorization.

681716230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5243991.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 681716230 is about 26109.6960916821. The cubic root of 681716230 is about 880.1051139935.

The spelling of 681716230 in words is "six hundred eighty-one million, seven hundred sixteen thousand, two hundred thirty".