289550099 has 4 divisors (see below), whose sum is σ = 289666680. Its totient is φ = 289433520.

The previous prime is 289550087. The next prime is 289550143. The reversal of 289550099 is 990055982.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 289550099 - 2²⁰ = 288501523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (289550029) 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, 54482 + ... + 59559.

It is an arithmetic number, because the mean of its divisors is an integer number (72416670).

Almost surely, 2^289550099 is an apocalyptic number.

289550099 is a deficient number, since it is larger than the sum of its proper divisors (116581).

289550099 is a wasteful number, since it uses less digits than its factorization.

289550099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116580.

The product of its (nonzero) digits is 291600, while the sum is 47.

The square root of 289550099 is about 17016.1716904831. The cubic root of 289550099 is about 661.5681254130.

The spelling of 289550099 in words is "two hundred eighty-nine million, five hundred fifty thousand, ninety-nine".