8425169 has 2 divisors, whose sum is σ = 8425170. Its totient is φ = 8425168.

The previous prime is 8425133. The next prime is 8425171. The reversal of 8425169 is 9615248.

8425169 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., 6190144 + 2235025 = 2488^2 + 1495^2 .

It is a cyclic number.

It is not a de Polignac number, because 8425169 - 2¹⁶ = 8359633 is a prime.

It is a super-2 number, since 2×8425169² = 141966945357122, which contains 22 as substring.

Together with 8425171, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8428169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4212584 + 4212585.

It is an arithmetic number, because the mean of its divisors is an integer number (4212585).

Almost surely, 2^8425169 is an apocalyptic number.

It is an amenable number.

8425169 is a deficient number, since it is larger than the sum of its proper divisors (1).

8425169 is an equidigital number, since it uses as much as digits as its factorization.

8425169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 35.

The square root of 8425169 is about 2902.6141665747. The cubic root of 8425169 is about 203.4820981260.

The spelling of 8425169 in words is "eight million, four hundred twenty-five thousand, one hundred sixty-nine".