4311409 has 2 divisors, whose sum is σ = 4311410. Its totient is φ = 4311408.

The previous prime is 4311407. The next prime is 4311413. The reversal of 4311409 is 9041134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4293184 + 18225 = 2072^2 + 135^2 .

It is a cyclic number.

It is not a de Polignac number, because 4311409 - 2¹ = 4311407 is a prime.

Together with 4311407, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4311409.

It is not a weakly prime, because it can be changed into another prime (4311403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2155704 + 2155705.

It is an arithmetic number, because the mean of its divisors is an integer number (2155705).

Almost surely, 2^4311409 is an apocalyptic number.

It is an amenable number.

4311409 is a deficient number, since it is larger than the sum of its proper divisors (1).

4311409 is an equidigital number, since it uses as much as digits as its factorization.

4311409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 4311409 is about 2076.3932671823. The cubic root of 4311409 is about 162.7570244168.

The spelling of 4311409 in words is "four million, three hundred eleven thousand, four hundred nine".