881285931 has 6 divisors (see below), whose sum is σ = 1272968580. Its totient is φ = 587523948.

The previous prime is 881285927. The next prime is 881285941. The reversal of 881285931 is 139582188.

It is a happy number.

It is not a de Polignac number, because 881285931 - 2² = 881285927 is a prime.

It is a super-2 number, since 2×881285931² = 1553329784357073522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (881285941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48960321 + ... + 48960338.

It is an arithmetic number, because the mean of its divisors is an integer number (212161430).

Almost surely, 2^881285931 is an apocalyptic number.

881285931 is a deficient number, since it is larger than the sum of its proper divisors (391682649).

881285931 is a wasteful number, since it uses less digits than its factorization.

881285931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97920665 (or 97920662 counting only the distinct ones).

The product of its digits is 138240, while the sum is 45.

The square root of 881285931 is about 29686.4603986396. The cubic root of 881285931 is about 958.7505196366.

The spelling of 881285931 in words is "eight hundred eighty-one million, two hundred eighty-five thousand, nine hundred thirty-one".