408263 has 2 divisors, whose sum is σ = 408264. Its totient is φ = 408262.

The previous prime is 408251. The next prime is 408271. The reversal of 408263 is 362804.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 408263 - 2¹² = 404167 is a prime.

It is equal to p₃₄₄₇₅ and since 408263 and 34475 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 408263.

It is not a weakly prime, because it can be changed into another prime (408203) 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, 204131 + 204132.

It is an arithmetic number, because the mean of its divisors is an integer number (204132).

2⁴⁰⁸²⁶³ is an apocalyptic number.

408263 is a deficient number, since it is larger than the sum of its proper divisors (1).

408263 is an equidigital number, since it uses as much as digits as its factorization.

408263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 408263 is about 638.9546149767. The cubic root of 408263 is about 74.1845285150.

The spelling of 408263 in words is "four hundred eight thousand, two hundred sixty-three".