289299972 has 24 divisors (see below), whose sum is σ = 726959296. Its totient is φ = 89015328.

The previous prime is 289299971. The next prime is 289299973. The reversal of 289299972 is 279992982.

It is an interprime number because it is at equal distance from previous prime (289299971) and next prime (289299973).

It is not an unprimeable number, because it can be changed into a prime (289299971) 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, 927088 + ... + 927399.

Almost surely, 2^289299972 is an apocalyptic number.

It is an amenable number.

289299972 is an abundant number, since it is smaller than the sum of its proper divisors (437659324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

289299972 is a wasteful number, since it uses less digits than its factorization.

289299972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854507 (or 1854505 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 57.

The square root of 289299972 is about 17008.8204176539. The cubic root of 289299972 is about 661.3775726409.

The spelling of 289299972 in words is "two hundred eighty-nine million, two hundred ninety-nine thousand, nine hundred seventy-two".