8442263 has 2 divisors, whose sum is σ = 8442264. Its totient is φ = 8442262.

The previous prime is 8442229. The next prime is 8442271. The reversal of 8442263 is 3622448.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8442263 - 2¹⁸ = 8180119 is a prime.

It is a super-2 number, since 2×8442263² = 142543609122338, which contains 22 as substring.

It is an Ulam number.

It is a d-powerful number, because it can be written as 8⁵ + 4² + 4⁵ + 2⁷ + 2²³ + 6² + 3⁹ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8442223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4221131 + 4221132.

It is an arithmetic number, because the mean of its divisors is an integer number (4221132).

Almost surely, 2^8442263 is an apocalyptic number.

8442263 is a deficient number, since it is larger than the sum of its proper divisors (1).

8442263 is an equidigital number, since it uses as much as digits as its factorization.

8442263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 29.

The square root of 8442263 is about 2905.5572615249. The cubic root of 8442263 is about 203.6196215086.

The spelling of 8442263 in words is "eight million, four hundred forty-two thousand, two hundred sixty-three".