5406439 has 2 divisors, whose sum is σ = 5406440. Its totient is φ = 5406438.

The previous prime is 5406421. The next prime is 5406463. The reversal of 5406439 is 9346045.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5406439 - 2⁵ = 5406407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5406439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5406139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2703219 + 2703220.

It is an arithmetic number, because the mean of its divisors is an integer number (2703220).

Almost surely, 2^5406439 is an apocalyptic number.

5406439 is a deficient number, since it is larger than the sum of its proper divisors (1).

5406439 is an equidigital number, since it uses as much as digits as its factorization.

5406439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 5406439 is about 2325.1750471739. The cubic root of 5406439 is about 175.5107690028.

The spelling of 5406439 in words is "five million, four hundred six thousand, four hundred thirty-nine".