2872389 has 8 divisors (see below), whose sum is σ = 4124512. Its totient is φ = 1767600.

The previous prime is 2872379. The next prime is 2872391. The reversal of 2872389 is 9832782.

2872389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2872389 - 2⁹ = 2871877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 73651 = 2872389 / (2 + 8 + 7 + 2 + 3 + 8 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2872369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36787 + ... + 36864.

It is an arithmetic number, because the mean of its divisors is an integer number (515564).

2^2872389 is an apocalyptic number.

It is an amenable number.

2872389 is a deficient number, since it is larger than the sum of its proper divisors (1252123).

2872389 is a wasteful number, since it uses less digits than its factorization.

2872389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73667.

The product of its digits is 48384, while the sum is 39.

The square root of 2872389 is about 1694.8123789966. The cubic root of 2872389 is about 142.1502905250.

The spelling of 2872389 in words is "two million, eight hundred seventy-two thousand, three hundred eighty-nine".