2504839 has 4 divisors (see below), whose sum is σ = 2521800. Its totient is φ = 2487880.

The previous prime is 2504837. The next prime is 2504869. The reversal of 2504839 is 9384052.

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 2504839 - 2¹ = 2504837 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2504839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2504837) 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, 8257 + ... + 8554.

It is an arithmetic number, because the mean of its divisors is an integer number (630450).

2^2504839 is an apocalyptic number.

2504839 is a deficient number, since it is larger than the sum of its proper divisors (16961).

2504839 is a wasteful number, since it uses less digits than its factorization.

2504839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16960.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 2504839 is about 1582.6683164833. The cubic root of 2504839 is about 135.8083915044.

The spelling of 2504839 in words is "two million, five hundred four thousand, eight hundred thirty-nine".