2872289 has 8 divisors (see below), whose sum is σ = 3302208. Its totient is φ = 2447280.

The previous prime is 2872283. The next prime is 2872291. The reversal of 2872289 is 9822782.

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 2872289 - 2²⁰ = 1823713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2872283) 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, 134 + ... + 2400.

It is an arithmetic number, because the mean of its divisors is an integer number (412776).

2^2872289 is an apocalyptic number.

It is an amenable number.

2872289 is a deficient number, since it is larger than the sum of its proper divisors (429919).

2872289 is a wasteful number, since it uses less digits than its factorization.

2872289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455.

The product of its digits is 32256, while the sum is 38.

The square root of 2872289 is about 1694.7828769491. The cubic root of 2872289 is about 142.1486408884.

The spelling of 2872289 in words is "two million, eight hundred seventy-two thousand, two hundred eighty-nine".