8406253 has 2 divisors, whose sum is σ = 8406254. Its totient is φ = 8406252.

The previous prime is 8406221. The next prime is 8406283. The reversal of 8406253 is 3526048.

8406253 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6959044 + 1447209 = 2638^2 + 1203^2 .

It is a cyclic number.

It is not a de Polignac number, because 8406253 - 2⁵ = 8406221 is a prime.

8406253 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8406283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4203126 + 4203127.

It is an arithmetic number, because the mean of its divisors is an integer number (4203127).

Almost surely, 2^8406253 is an apocalyptic number.

It is an amenable number.

8406253 is a deficient number, since it is larger than the sum of its proper divisors (1).

8406253 is an equidigital number, since it uses as much as digits as its factorization.

8406253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 8406253 is about 2899.3538935425. The cubic root of 8406253 is about 203.3296995379.

The spelling of 8406253 in words is "eight million, four hundred six thousand, two hundred fifty-three".