489479 has 2 divisors, whose sum is σ = 489480. Its totient is φ = 489478.

The previous prime is 489457. The next prime is 489487. The reversal of 489479 is 974984.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 489479 - 2¹² = 485383 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244739 + 244740.

It is an arithmetic number, because the mean of its divisors is an integer number (244740).

2⁴⁸⁹⁴⁷⁹ is an apocalyptic number.

489479 is a deficient number, since it is larger than the sum of its proper divisors (1).

489479 is an equidigital number, since it uses as much as digits as its factorization.

489479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 41.

The square root of 489479 is about 699.6277581686. The cubic root of 489479 is about 78.8094000485.

The spelling of 489479 in words is "four hundred eighty-nine thousand, four hundred seventy-nine".