3440513 has 2 divisors, whose sum is σ = 3440514. Its totient is φ = 3440512.

The previous prime is 3440491. The next prime is 3440527. The reversal of 3440513 is 3150443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3429904 + 10609 = 1852^2 + 103^2 .

It is an emirp because it is prime and its reverse (3150443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3440513 - 2¹² = 3436417 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3440533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1720256 + 1720257.

It is an arithmetic number, because the mean of its divisors is an integer number (1720257).

Almost surely, 2^3440513 is an apocalyptic number.

It is an amenable number.

3440513 is a deficient number, since it is larger than the sum of its proper divisors (1).

3440513 is an equidigital number, since it uses as much as digits as its factorization.

3440513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 3440513 is about 1854.8619894752. The cubic root of 3440513 is about 150.9643498723.

Adding to 3440513 its reverse (3150443), we get a palindrome (6590956).

The spelling of 3440513 in words is "three million, four hundred forty thousand, five hundred thirteen".