99866433 has 4 divisors (see below), whose sum is σ = 133155248. Its totient is φ = 66577620.

The previous prime is 99866423. The next prime is 99866453. The reversal of 99866433 is 33466899.

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 99866433 - 2⁶ = 99866369 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (99866423) 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, 16644403 + ... + 16644408.

It is an arithmetic number, because the mean of its divisors is an integer number (33288812).

Almost surely, 2^99866433 is an apocalyptic number.

It is an amenable number.

99866433 is a deficient number, since it is larger than the sum of its proper divisors (33288815).

99866433 is a wasteful number, since it uses less digits than its factorization.

99866433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33288814.

The product of its digits is 839808, while the sum is 48.

The square root of 99866433 is about 9993.3194184915. The cubic root of 99866433 is about 463.9521369204.

The spelling of 99866433 in words is "ninety-nine million, eight hundred sixty-six thousand, four hundred thirty-three".