2653439 has 4 divisors (see below), whose sum is σ = 2697000. Its totient is φ = 2609880.

The previous prime is 2653433. The next prime is 2653459. The reversal of 2653439 is 9343562.

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 2653439 - 2¹⁶ = 2587903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2653433) 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, 21689 + ... + 21810.

It is an arithmetic number, because the mean of its divisors is an integer number (674250).

2^2653439 is an apocalyptic number.

2653439 is a deficient number, since it is larger than the sum of its proper divisors (43561).

2653439 is an equidigital number, since it uses as much as digits as its factorization.

2653439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43560.

The product of its digits is 19440, while the sum is 32.

The square root of 2653439 is about 1628.9379975923. The cubic root of 2653439 is about 138.4425859070.

The spelling of 2653439 in words is "two million, six hundred fifty-three thousand, four hundred thirty-nine".