5431609 has 2 divisors, whose sum is σ = 5431610. Its totient is φ = 5431608.

The previous prime is 5431597. The next prime is 5431627. The reversal of 5431609 is 9061345.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4717584 + 714025 = 2172^2 + 845^2 .

It is a cyclic number.

It is not a de Polignac number, because 5431609 - 2⁵ = 5431577 is a prime.

It is not a weakly prime, because it can be changed into another prime (5435609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2715804 + 2715805.

It is an arithmetic number, because the mean of its divisors is an integer number (2715805).

Almost surely, 2^5431609 is an apocalyptic number.

It is an amenable number.

5431609 is a deficient number, since it is larger than the sum of its proper divisors (1).

5431609 is an equidigital number, since it uses as much as digits as its factorization.

5431609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 5431609 is about 2330.5812579698. The cubic root of 5431609 is about 175.7827143786.

It can be divided in two parts, 543160 and 9, that added together give a square (543169 = 737²).

The spelling of 5431609 in words is "five million, four hundred thirty-one thousand, six hundred nine".