681671883 has 32 divisors (see below), whose sum is σ = 959999040. Its totient is φ = 429649920.

The previous prime is 681671867. The next prime is 681671891. The reversal of 681671883 is 388176186.

681671883 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 681671883 - 2⁴ = 681671867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (681671813) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1149235 + ... + 1149827.

It is an arithmetic number, because the mean of its divisors is an integer number (29999970).

Almost surely, 2^681671883 is an apocalyptic number.

681671883 is a deficient number, since it is larger than the sum of its proper divisors (278327157).

681671883 is a wasteful number, since it uses less digits than its factorization.

681671883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879.

The product of its digits is 387072, while the sum is 48.

The square root of 681671883 is about 26108.8468339756. The cubic root of 681671883 is about 880.0860293821.

The spelling of 681671883 in words is "six hundred eighty-one million, six hundred seventy-one thousand, eight hundred eighty-three".