489427 has 2 divisors, whose sum is σ = 489428. Its totient is φ = 489426.

The previous prime is 489409. The next prime is 489431. The reversal of 489427 is 724984.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 489427 - 2⁷ = 489299 is a prime.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 489392 and 489401.

It is not a weakly prime, because it can be changed into another prime (489407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244713 + 244714.

It is an arithmetic number, because the mean of its divisors is an integer number (244714).

2⁴⁸⁹⁴²⁷ is an apocalyptic number.

489427 is a deficient number, since it is larger than the sum of its proper divisors (1).

489427 is an equidigital number, since it uses as much as digits as its factorization.

489427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 34.

The square root of 489427 is about 699.5905945623. The cubic root of 489427 is about 78.8066091668.

The spelling of 489427 in words is "four hundred eighty-nine thousand, four hundred twenty-seven".