899983 has 6 divisors (see below), whose sum is σ = 1046976. Its totient is φ = 771372.

The previous prime is 899981. The next prime is 900001. The reversal of 899983 is 389998.

It is not a de Polignac number, because 899983 - 2¹ = 899981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899981) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9135 + ... + 9232.

It is an arithmetic number, because the mean of its divisors is an integer number (174496).

2⁸⁹⁹⁹⁸³ is an apocalyptic number.

899983 is a deficient number, since it is larger than the sum of its proper divisors (146993).

899983 is a wasteful number, since it uses less digits than its factorization.

899983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18381 (or 18374 counting only the distinct ones).

The product of its digits is 139968, while the sum is 46.

The square root of 899983 is about 948.6743382215. The cubic root of 899983 is about 96.5483305560.

The spelling of 899983 in words is "eight hundred ninety-nine thousand, nine hundred eighty-three".