998566233 has 16 divisors (see below), whose sum is σ = 1533244416. Its totient is φ = 566251920.

The previous prime is 998566201. The next prime is 998566243. The reversal of 998566233 is 332665899.

It is not a de Polignac number, because 998566233 - 2⁵ = 998566201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (998566243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178741 + ... + 184242.

It is an arithmetic number, because the mean of its divisors is an integer number (95827776).

Almost surely, 2^998566233 is an apocalyptic number.

It is an amenable number.

998566233 is a deficient number, since it is larger than the sum of its proper divisors (534678183).

998566233 is a wasteful number, since it uses less digits than its factorization.

998566233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363124.

The product of its digits is 2099520, while the sum is 51.

The square root of 998566233 is about 31600.0986232638. The cubic root of 998566233 is about 999.5218490748.

The spelling of 998566233 in words is "nine hundred ninety-eight million, five hundred sixty-six thousand, two hundred thirty-three".