881431 has 4 divisors (see below), whose sum is σ = 886192. Its totient is φ = 876672.

The previous prime is 881417. The next prime is 881437. The reversal of 881431 is 134188.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-881431 is a prime.

It is a super-2 number, since 2×881431² = 1553841215522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 881396 and 881405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2091 + ... + 2476.

It is an arithmetic number, because the mean of its divisors is an integer number (221548).

2⁸⁸¹⁴³¹ is an apocalyptic number.

881431 is a deficient number, since it is larger than the sum of its proper divisors (4761).

881431 is a wasteful number, since it uses less digits than its factorization.

881431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4760.

The product of its digits is 768, while the sum is 25.

The square root of 881431 is about 938.8455677054. The cubic root of 881431 is about 95.8803123581.

The spelling of 881431 in words is "eight hundred eighty-one thousand, four hundred thirty-one".