881998 has 8 divisors (see below), whose sum is σ = 1424808. Its totient is φ = 407064.

The previous prime is 881987. The next prime is 882017. The reversal of 881998 is 899188.

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

It is a congruent number.

It is an unprimeable number.

881998 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16936 + ... + 16987.

It is an arithmetic number, because the mean of its divisors is an integer number (178101).

2⁸⁸¹⁹⁹⁸ is an apocalyptic number.

881998 is a deficient number, since it is larger than the sum of its proper divisors (542810).

881998 is a wasteful number, since it uses less digits than its factorization.

881998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33938.

The product of its digits is 41472, while the sum is 43.

The square root of 881998 is about 939.1474857550. The cubic root of 881998 is about 95.9008669957.

The spelling of 881998 in words is "eight hundred eighty-one thousand, nine hundred ninety-eight".