681734110 has 8 divisors (see below), whose sum is σ = 1227121416. Its totient is φ = 272693640.

The previous prime is 681734047. The next prime is 681734111. The reversal of 681734110 is 11437186.

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

It is a super-2 number, since 2×681734110² = 929522793474984200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681734111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34086696 + ... + 34086715.

It is an arithmetic number, because the mean of its divisors is an integer number (153390177).

Almost surely, 2^681734110 is an apocalyptic number.

681734110 is a deficient number, since it is larger than the sum of its proper divisors (545387306).

681734110 is a wasteful number, since it uses less digits than its factorization.

681734110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68173418.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 681734110 is about 26110.0384909712. The cubic root of 681734110 is about 880.1128083689.

The spelling of 681734110 in words is "six hundred eighty-one million, seven hundred thirty-four thousand, one hundred ten".