6412409 has 2 divisors, whose sum is σ = 6412410. Its totient is φ = 6412408.

The previous prime is 6412387. The next prime is 6412421. The reversal of 6412409 is 9042146.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6250000 + 162409 = 2500^2 + 403^2 .

It is a cyclic number.

It is not a de Polignac number, because 6412409 - 2¹² = 6408313 is a prime.

It is a super-2 number, since 2×6412409² = 82237978366562, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6412429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3206204 + 3206205.

It is an arithmetic number, because the mean of its divisors is an integer number (3206205).

Almost surely, 2^6412409 is an apocalyptic number.

It is an amenable number.

6412409 is a deficient number, since it is larger than the sum of its proper divisors (1).

6412409 is an equidigital number, since it uses as much as digits as its factorization.

6412409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 6412409 is about 2532.2734844404. The cubic root of 6412409 is about 185.7834706164.

The spelling of 6412409 in words is "six million, four hundred twelve thousand, four hundred nine".