868881923 has 16 divisors (see below), whose sum is σ = 1070086080. Its totient is φ = 687021696.

The previous prime is 868881889. The next prime is 868881943. The reversal of 868881923 is 329188868.

It is a cyclic number.

It is not a de Polignac number, because 868881923 - 2⁸ = 868881667 is a prime.

It is a super-2 number, since 2×868881923² = 1509911592232355858, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (868881943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267473 + ... + 270701.

It is an arithmetic number, because the mean of its divisors is an integer number (66880380).

Almost surely, 2^868881923 is an apocalyptic number.

868881923 is a deficient number, since it is larger than the sum of its proper divisors (201204157).

868881923 is a wasteful number, since it uses less digits than its factorization.

868881923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6206.

The product of its digits is 1327104, while the sum is 53.

The square root of 868881923 is about 29476.8031339900. The cubic root of 868881923 is about 954.2311449225.

The spelling of 868881923 in words is "eight hundred sixty-eight million, eight hundred eighty-one thousand, nine hundred twenty-three".