2872839 has 8 divisors (see below), whose sum is σ = 3839872. Its totient is φ = 1910520.

The previous prime is 2872823. The next prime is 2872853. The reversal of 2872839 is 9382782.

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

It is not a de Polignac number, because 2872839 - 2⁴ = 2872823 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 2872797 and 2872806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2872889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654 + ... + 2484.

It is an arithmetic number, because the mean of its divisors is an integer number (479984).

2^2872839 is an apocalyptic number.

2872839 is a deficient number, since it is larger than the sum of its proper divisors (967033).

2872839 is a wasteful number, since it uses less digits than its factorization.

2872839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357.

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

The square root of 2872839 is about 1694.9451318553. The cubic root of 2872839 is about 142.1577134159.

The spelling of 2872839 in words is "two million, eight hundred seventy-two thousand, eight hundred thirty-nine".