8425243 has 2 divisors, whose sum is σ = 8425244. Its totient is φ = 8425242.

The previous prime is 8425237. The next prime is 8425253. The reversal of 8425243 is 3425248.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8425243 - 2¹³ = 8417051 is a prime.

8425243 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8425253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4212621 + 4212622.

It is an arithmetic number, because the mean of its divisors is an integer number (4212622).

Almost surely, 2^8425243 is an apocalyptic number.

8425243 is a deficient number, since it is larger than the sum of its proper divisors (1).

8425243 is an equidigital number, since it uses as much as digits as its factorization.

8425243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7680, while the sum is 28.

The square root of 8425243 is about 2902.6269136766. The cubic root of 8425243 is about 203.4826938660.

It can be divided in two parts, 8425 and 243, that added together give a palindrome (8668).

The spelling of 8425243 in words is "eight million, four hundred twenty-five thousand, two hundred forty-three".