289220899 has 8 divisors (see below), whose sum is σ = 316152000. Its totient is φ = 262396200.

The previous prime is 289220879. The next prime is 289220909. The reversal of 289220899 is 998022982.

It is a happy number.

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

It is not a de Polignac number, because 289220899 - 2¹¹ = 289218851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (289220809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20857 + ... + 31834.

It is an arithmetic number, because the mean of its divisors is an integer number (39519000).

Almost surely, 2^289220899 is an apocalyptic number.

289220899 is a deficient number, since it is larger than the sum of its proper divisors (26931101).

289220899 is a wasteful number, since it uses less digits than its factorization.

289220899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53201.

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 289220899 is about 17006.4957883745. The cubic root of 289220899 is about 661.3173100769.

The spelling of 289220899 in words is "two hundred eighty-nine million, two hundred twenty thousand, eight hundred ninety-nine".