5491439 has 2 divisors, whose sum is σ = 5491440. Its totient is φ = 5491438.

The previous prime is 5491393. The next prime is 5491477. The reversal of 5491439 is 9341945.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5491439 - 2¹² = 5487343 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 5491399 and 5491408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5491039) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2745719 + 2745720.

It is an arithmetic number, because the mean of its divisors is an integer number (2745720).

Almost surely, 2^5491439 is an apocalyptic number.

5491439 is a deficient number, since it is larger than the sum of its proper divisors (1).

5491439 is an equidigital number, since it uses as much as digits as its factorization.

5491439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 35.

The square root of 5491439 is about 2343.3819577696. The cubic root of 5491439 is about 176.4257834118.

The spelling of 5491439 in words is "five million, four hundred ninety-one thousand, four hundred thirty-nine".