8398147 has 2 divisors, whose sum is σ = 8398148. Its totient is φ = 8398146.

The previous prime is 8398141. The next prime is 8398177. The reversal of 8398147 is 7418938.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8398147 - 2²³ = 9539 is a prime.

It is not a weakly prime, because it can be changed into another prime (8398141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4199073 + 4199074.

It is an arithmetic number, because the mean of its divisors is an integer number (4199074).

Almost surely, 2^8398147 is an apocalyptic number.

8398147 is a deficient number, since it is larger than the sum of its proper divisors (1).

8398147 is an equidigital number, since it uses as much as digits as its factorization.

8398147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 40.

The square root of 8398147 is about 2897.9556587360. The cubic root of 8398147 is about 203.2643227840.

The spelling of 8398147 in words is "eight million, three hundred ninety-eight thousand, one hundred forty-seven".