880991 has 8 divisors (see below), whose sum is σ = 965520. Its totient is φ = 800128.

The previous prime is 880981. The next prime is 880993. The reversal of 880991 is 199088.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 880991 - 2¹⁸ = 618847 is a prime.

It is a super-2 number, since 2×880991² = 1552290284162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (880993) 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, 401 + ... + 1386.

It is an arithmetic number, because the mean of its divisors is an integer number (120690).

2⁸⁸⁰⁹⁹¹ is an apocalyptic number.

880991 is a deficient number, since it is larger than the sum of its proper divisors (84529).

880991 is a wasteful number, since it uses less digits than its factorization.

880991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833.

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 880991 is about 938.6112081155. The cubic root of 880991 is about 95.8643555942.

The spelling of 880991 in words is "eight hundred eighty thousand, nine hundred ninety-one".