99143933 has 8 divisors (see below), whose sum is σ = 113631168. Its totient is φ = 84737664.

The previous prime is 99143927. The next prime is 99143959. The reversal of 99143933 is 33934199.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99143933 - 2⁴ = 99143917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99143963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17591 + ... + 22532.

It is an arithmetic number, because the mean of its divisors is an integer number (14203896).

Almost surely, 2^99143933 is an apocalyptic number.

It is an amenable number.

99143933 is a deficient number, since it is larger than the sum of its proper divisors (14487235).

99143933 is a wasteful number, since it uses less digits than its factorization.

99143933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40483.

The product of its digits is 78732, while the sum is 41.

The square root of 99143933 is about 9957.1046494450. The cubic root of 99143933 is about 462.8305820605.

The spelling of 99143933 in words is "ninety-nine million, one hundred forty-three thousand, nine hundred thirty-three".