2715409 has 2 divisors, whose sum is σ = 2715410. Its totient is φ = 2715408.

The previous prime is 2715371. The next prime is 2715413. The reversal of 2715409 is 9045172.

It is a happy number.

2715409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2650384 + 65025 = 1628^2 + 255^2 .

It is a cyclic number.

It is not a de Polignac number, because 2715409 - 2⁷ = 2715281 is a prime.

It is a Chen prime.

2715409 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2715439) 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, 1357704 + 1357705.

It is an arithmetic number, because the mean of its divisors is an integer number (1357705).

2^2715409 is an apocalyptic number.

It is an amenable number.

2715409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2715409 is an equidigital number, since it uses as much as digits as its factorization.

2715409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 2715409 is about 1647.8498111175. The cubic root of 2715409 is about 139.5120598679.

The spelling of 2715409 in words is "two million, seven hundred fifteen thousand, four hundred nine".