899563233 has 4 divisors (see below), whose sum is σ = 1199417648. Its totient is φ = 599708820.

The previous prime is 899563219. The next prime is 899563243. The reversal of 899563233 is 332365998.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 899563233 - 2²⁰ = 898514657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (899563243) 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, 149927203 + ... + 149927208.

It is an arithmetic number, because the mean of its divisors is an integer number (299854412).

Almost surely, 2^899563233 is an apocalyptic number.

It is an amenable number.

899563233 is a deficient number, since it is larger than the sum of its proper divisors (299854415).

899563233 is a wasteful number, since it uses less digits than its factorization.

899563233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299854414.

The product of its digits is 1049760, while the sum is 48.

The square root of 899563233 is about 29992.7196666124. The cubic root of 899563233 is about 965.3331764071. Note that the first 3 decimals are identical.

The spelling of 899563233 in words is "eight hundred ninety-nine million, five hundred sixty-three thousand, two hundred thirty-three".