881166731 has 8 divisors (see below), whose sum is σ = 926096640. Its totient is φ = 836788392.

The previous prime is 881166659. The next prime is 881166733. The reversal of 881166731 is 137661188.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-881166731 is a prime.

It is a super-2 number, since 2×881166731² = 1552909615642452722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (881166733) 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 7 ways as a sum of consecutive naturals, for example, 134615 + ... + 141008.

It is an arithmetic number, because the mean of its divisors is an integer number (115762080).

Almost surely, 2^881166731 is an apocalyptic number.

881166731 is a deficient number, since it is larger than the sum of its proper divisors (44929909).

881166731 is a wasteful number, since it uses less digits than its factorization.

881166731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275785.

The product of its digits is 48384, while the sum is 41.

The square root of 881166731 is about 29684.4526814964. The cubic root of 881166731 is about 958.7072918143.

The spelling of 881166731 in words is "eight hundred eighty-one million, one hundred sixty-six thousand, seven hundred thirty-one".