289220499 has 6 divisors (see below), whose sum is σ = 417762956. Its totient is φ = 192813660.

The previous prime is 289220479. The next prime is 289220531. The reversal of 289220499 is 994022982.

It is not a de Polignac number, because 289220499 - 2²⁸ = 20785043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (289220479) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16067797 + ... + 16067814.

Almost surely, 2^289220499 is an apocalyptic number.

289220499 is a deficient number, since it is larger than the sum of its proper divisors (128542457).

289220499 is a wasteful number, since it uses less digits than its factorization.

289220499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32135617 (or 32135614 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 289220499 is about 17006.4840281582. The cubic root of 289220499 is about 661.3170052038.

The spelling of 289220499 in words is "two hundred eighty-nine million, two hundred twenty thousand, four hundred ninety-nine".