881261 has 4 divisors (see below), whose sum is σ = 885024. Its totient is φ = 877500.

The previous prime is 881249. The next prime is 881269. The reversal of 881261 is 162188.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 881261 - 2⁶ = 881197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 881261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881269) 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, 1505 + ... + 2006.

It is an arithmetic number, because the mean of its divisors is an integer number (221256).

2⁸⁸¹²⁶¹ is an apocalyptic number.

It is an amenable number.

881261 is a deficient number, since it is larger than the sum of its proper divisors (3763).

881261 is a wasteful number, since it uses less digits than its factorization.

881261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3762.

The product of its digits is 768, while the sum is 26.

The square root of 881261 is about 938.7550266177. The cubic root of 881261 is about 95.8741478744.

The spelling of 881261 in words is "eight hundred eighty-one thousand, two hundred sixty-one".