427169 has 2 divisors, whose sum is σ = 427170. Its totient is φ = 427168.

The previous prime is 427151. The next prime is 427181. The reversal of 427169 is 961724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 313600 + 113569 = 560^2 + 337^2 .

It is a cyclic number.

It is not a de Polignac number, because 427169 - 2⁸ = 426913 is a prime.

It is a super-2 number, since 2×427169² = 364946709122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (427069) 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, 213584 + 213585.

It is an arithmetic number, because the mean of its divisors is an integer number (213585).

2⁴²⁷¹⁶⁹ is an apocalyptic number.

It is an amenable number.

427169 is a deficient number, since it is larger than the sum of its proper divisors (1).

427169 is an equidigital number, since it uses as much as digits as its factorization.

427169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 29.

The square root of 427169 is about 653.5816704896. The cubic root of 427169 is about 75.3124153337.

The spelling of 427169 in words is "four hundred twenty-seven thousand, one hundred sixty-nine".