881073891 has 12 divisors (see below), whose sum is σ = 1299740832. Its totient is φ = 574884816.

The previous prime is 881073881. The next prime is 881073929. The reversal of 881073891 is 198370188.

It is not a de Polignac number, because 881073891 - 2⁷ = 881073763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (881073881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1041036 + ... + 1041881.

It is an arithmetic number, because the mean of its divisors is an integer number (108311736).

Almost surely, 2^881073891 is an apocalyptic number.

881073891 is a deficient number, since it is larger than the sum of its proper divisors (418666941).

881073891 is a wasteful number, since it uses less digits than its factorization.

881073891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2082970 (or 2082967 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The square root of 881073891 is about 29682.8888587348. Note that the first 4 decimals coincide. The cubic root of 881073891 is about 958.6736207326.

The spelling of 881073891 in words is "eight hundred eighty-one million, seventy-three thousand, eight hundred ninety-one".