489442487 has 2 divisors, whose sum is σ = 489442488. Its totient is φ = 489442486.

The previous prime is 489442441. The next prime is 489442493. The reversal of 489442487 is 784244984.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 489442487 - 2⁶ = 489442423 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 (489442687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244721243 + 244721244.

It is an arithmetic number, because the mean of its divisors is an integer number (244721244).

Almost surely, 2^489442487 is an apocalyptic number.

489442487 is a deficient number, since it is larger than the sum of its proper divisors (1).

489442487 is an equidigital number, since it uses as much as digits as its factorization.

489442487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2064384, while the sum is 50.

The square root of 489442487 is about 22123.3471021001. The cubic root of 489442487 is about 788.0744038714.

The spelling of 489442487 in words is "four hundred eighty-nine million, four hundred forty-two thousand, four hundred eighty-seven".