881031 has 4 divisors (see below), whose sum is σ = 1174712. Its totient is φ = 587352.

The previous prime is 881029. The next prime is 881057. The reversal of 881031 is 130188.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 881031 - 2¹ = 881029 is a prime.

It is a super-2 number, since 2×881031² = 1552431245922, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 880989 and 881007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881071) 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 3 ways as a sum of consecutive naturals, for example, 146836 + ... + 146841.

It is an arithmetic number, because the mean of its divisors is an integer number (293678).

2⁸⁸¹⁰³¹ is an apocalyptic number.

881031 is a deficient number, since it is larger than the sum of its proper divisors (293681).

881031 is a wasteful number, since it uses less digits than its factorization.

881031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293680.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 881031 is about 938.6325159507. The cubic root of 881031 is about 95.8658064286.

The spelling of 881031 in words is "eight hundred eighty-one thousand, thirty-one".