881819 has 4 divisors (see below), whose sum is σ = 885720. Its totient is φ = 877920.

The previous prime is 881813. The next prime is 881833. The reversal of 881819 is 918188.

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-881819 is a prime.

It is a super-2 number, since 2×881819² = 1555209497522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (881813) 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, 1589 + ... + 2070.

It is an arithmetic number, because the mean of its divisors is an integer number (221430).

2⁸⁸¹⁸¹⁹ is an apocalyptic number.

881819 is a deficient number, since it is larger than the sum of its proper divisors (3901).

881819 is a wasteful number, since it uses less digits than its factorization.

881819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3900.

The product of its digits is 4608, while the sum is 35.

The square root of 881819 is about 939.0521817237. The cubic root of 881819 is about 95.8943789172.

The spelling of 881819 in words is "eight hundred eighty-one thousand, eight hundred nineteen".