6258409 has 2 divisors, whose sum is σ = 6258410. Its totient is φ = 6258408.

The previous prime is 6258401. The next prime is 6258419. The reversal of 6258409 is 9048526.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5626384 + 632025 = 2372^2 + 795^2 .

It is a cyclic number.

It is not a de Polignac number, because 6258409 - 2³ = 6258401 is a prime.

It is a super-2 number, since 2×6258409² = 78335366422562, which contains 22 as substring.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (6258401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3129204 + 3129205.

It is an arithmetic number, because the mean of its divisors is an integer number (3129205).

Almost surely, 2^6258409 is an apocalyptic number.

It is an amenable number.

6258409 is a deficient number, since it is larger than the sum of its proper divisors (1).

6258409 is an equidigital number, since it uses as much as digits as its factorization.

6258409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 6258409 is about 2501.6812346900. The cubic root of 6258409 is about 184.2841486328.

The spelling of 6258409 in words is "six million, two hundred fifty-eight thousand, four hundred nine".