681346877 has 8 divisors (see below), whose sum is σ = 684921600. Its totient is φ = 677782224.

The previous prime is 681346867. The next prime is 681346889. The reversal of 681346877 is 778643186.

681346877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 681346877 - 2¹⁰ = 681345853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681346817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158999 + ... + 163227.

It is an arithmetic number, because the mean of its divisors is an integer number (85615200).

Almost surely, 2^681346877 is an apocalyptic number.

It is an amenable number.

681346877 is a deficient number, since it is larger than the sum of its proper divisors (3574723).

681346877 is a wasteful number, since it uses less digits than its factorization.

681346877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5035.

The product of its digits is 1354752, while the sum is 50.

The square root of 681346877 is about 26102.6220330449. The cubic root of 681346877 is about 879.9461386628.

The spelling of 681346877 in words is "six hundred eighty-one million, three hundred forty-six thousand, eight hundred seventy-seven".