427249 has 2 divisors, whose sum is σ = 427250. Its totient is φ = 427248.

The previous prime is 427247. The next prime is 427279. The reversal of 427249 is 942724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 384400 + 42849 = 620^2 + 207^2 .

It is a cyclic number.

It is not a de Polignac number, because 427249 - 2¹ = 427247 is a prime.

Together with 427247, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (427241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213624 + 213625.

It is an arithmetic number, because the mean of its divisors is an integer number (213625).

2⁴²⁷²⁴⁹ is an apocalyptic number.

It is an amenable number.

427249 is a deficient number, since it is larger than the sum of its proper divisors (1).

427249 is an equidigital number, since it uses as much as digits as its factorization.

427249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 28.

The square root of 427249 is about 653.6428688512. The cubic root of 427249 is about 75.3171165309.

It can be divided in two parts, 427 and 249, that added together give a palindrome (676).

The spelling of 427249 in words is "four hundred twenty-seven thousand, two hundred forty-nine".