489000247 has 2 divisors, whose sum is σ = 489000248. Its totient is φ = 489000246.

The previous prime is 489000221. The next prime is 489000277. The reversal of 489000247 is 742000984.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 489000247 - 2⁷ = 489000119 is a prime.

It is a super-2 number, since 2×489000247² = 478242483132122018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489000277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244500123 + 244500124.

It is an arithmetic number, because the mean of its divisors is an integer number (244500124).

Almost surely, 2^489000247 is an apocalyptic number.

489000247 is a deficient number, since it is larger than the sum of its proper divisors (1).

489000247 is an equidigital number, since it uses as much as digits as its factorization.

489000247 is an evil number, because the sum of its binary digits is even.

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

The square root of 489000247 is about 22113.3499723583. The cubic root of 489000247 is about 787.8369751948.

The spelling of 489000247 in words is "four hundred eighty-nine million, two hundred forty-seven", and thus it is an aban number.