1998883 has 4 divisors (see below), whose sum is σ = 2067840. Its totient is φ = 1929928.

The previous prime is 1998881. The next prime is 1998917. The reversal of 1998883 is 3888991.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1998883 - 2¹ = 1998881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1998881) 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, 34435 + ... + 34492.

It is an arithmetic number, because the mean of its divisors is an integer number (516960).

2^1998883 is an apocalyptic number.

1998883 is a deficient number, since it is larger than the sum of its proper divisors (68957).

1998883 is an equidigital number, since it uses as much as digits as its factorization.

1998883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68956.

The product of its digits is 124416, while the sum is 46.

The square root of 1998883 is about 1413.8185880798. The cubic root of 1998883 is about 125.9686450913.

The spelling of 1998883 in words is "one million, nine hundred ninety-eight thousand, eight hundred eighty-three".