406253 has 2 divisors, whose sum is σ = 406254. Its totient is φ = 406252.

The previous prime is 406247. The next prime is 406267. The reversal of 406253 is 352604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 405769 + 484 = 637^2 + 22^2 .

It is a cyclic number.

It is not a de Polignac number, because 406253 - 2⁸ = 405997 is a 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 406253.

It is not a weakly prime, because it can be changed into another prime (402253) 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, 203126 + 203127.

It is an arithmetic number, because the mean of its divisors is an integer number (203127).

2⁴⁰⁶²⁵³ is an apocalyptic number.

It is an amenable number.

406253 is a deficient number, since it is larger than the sum of its proper divisors (1).

406253 is an equidigital number, since it uses as much as digits as its factorization.

406253 is an odious number, because the sum of its binary digits is odd.

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

The square root of 406253 is about 637.3797925884. The cubic root of 406253 is about 74.0625840172.

Adding to 406253 its reverse (352604), we get a palindrome (758857).

The spelling of 406253 in words is "four hundred six thousand, two hundred fifty-three".