2802439 has 4 divisors (see below), whose sum is σ = 2867656. Its totient is φ = 2737224.

The previous prime is 2802407. The next prime is 2802451. The reversal of 2802439 is 9342082.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2802439 - 2⁵ = 2802407 is a prime.

It is a Duffinian number.

2802439 is a modest number, since divided by 2439 gives 28 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2802479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32544 + ... + 32629.

It is an arithmetic number, because the mean of its divisors is an integer number (716914).

2^2802439 is an apocalyptic number.

2802439 is a deficient number, since it is larger than the sum of its proper divisors (65217).

2802439 is an equidigital number, since it uses as much as digits as its factorization.

2802439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65216.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 2802439 is about 1674.0486850746. The cubic root of 2802439 is about 140.9868874348.

The spelling of 2802439 in words is "two million, eight hundred two thousand, four hundred thirty-nine".