488349889 has 2 divisors, whose sum is σ = 488349890. Its totient is φ = 488349888.

The previous prime is 488349887. The next prime is 488349899. The reversal of 488349889 is 988943884.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 479259664 + 9090225 = 21892^2 + 3015^2 .

It is a cyclic number.

It is not a de Polignac number, because 488349889 - 2¹ = 488349887 is a prime.

It is a super-2 number, since 2×488349889² = 476971228172624642, which contains 22 as substring.

Together with 488349887, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (488349887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244174944 + 244174945.

It is an arithmetic number, because the mean of its divisors is an integer number (244174945).

Almost surely, 2^488349889 is an apocalyptic number.

It is an amenable number.

488349889 is a deficient number, since it is larger than the sum of its proper divisors (1).

488349889 is an equidigital number, since it uses as much as digits as its factorization.

488349889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15925248, while the sum is 61.

The square root of 488349889 is about 22098.6399807771. The cubic root of 488349889 is about 787.4875524697.

The spelling of 488349889 in words is "four hundred eighty-eight million, three hundred forty-nine thousand, eight hundred eighty-nine".