5611439 has 2 divisors, whose sum is σ = 5611440. Its totient is φ = 5611438.

The previous prime is 5611433. The next prime is 5611447. The reversal of 5611439 is 9341165.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5611439 - 2⁴ = 5611423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5611433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2805719 + 2805720.

It is an arithmetic number, because the mean of its divisors is an integer number (2805720).

Almost surely, 2^5611439 is an apocalyptic number.

5611439 is a deficient number, since it is larger than the sum of its proper divisors (1).

5611439 is an equidigital number, since it uses as much as digits as its factorization.

5611439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 29.

The square root of 5611439 is about 2368.8476101261. The cubic root of 5611439 is about 177.7016316112.

The spelling of 5611439 in words is "five million, six hundred eleven thousand, four hundred thirty-nine".