881617 has 4 divisors (see below), whose sum is σ = 961776. Its totient is φ = 801460.

The previous prime is 881611. The next prime is 881641. The reversal of 881617 is 716188.

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 not a de Polignac number, because 881617 - 2¹⁵ = 848849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (881611) 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, 40063 + ... + 40084.

It is an arithmetic number, because the mean of its divisors is an integer number (240444).

2⁸⁸¹⁶¹⁷ is an apocalyptic number.

It is an amenable number.

881617 is a deficient number, since it is larger than the sum of its proper divisors (80159).

881617 is a wasteful number, since it uses less digits than its factorization.

881617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80158.

The product of its digits is 2688, while the sum is 31.

The square root of 881617 is about 938.9446203052. The cubic root of 881617 is about 95.8870561205.

The spelling of 881617 in words is "eight hundred eighty-one thousand, six hundred seventeen".