881331491 has 8 divisors (see below), whose sum is σ = 889152768. Its totient is φ = 873544000.

The previous prime is 881331481. The next prime is 881331533. The reversal of 881331491 is 194133188.

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 881331491 - 2¹⁰ = 881330467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (881331421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45461 + ... + 61881.

It is an arithmetic number, because the mean of its divisors is an integer number (111144096).

Almost surely, 2^881331491 is an apocalyptic number.

881331491 is a deficient number, since it is larger than the sum of its proper divisors (7821277).

881331491 is a wasteful number, since it uses less digits than its factorization.

881331491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16893.

The product of its digits is 20736, while the sum is 38.

The square root of 881331491 is about 29687.2277419095. The cubic root of 881331491 is about 958.7670409189.

It can be divided in two parts, 8813 and 31491, that added together give a palindrome (40304).

The spelling of 881331491 in words is "eight hundred eighty-one million, three hundred thirty-one thousand, four hundred ninety-one".