423882889 has 2 divisors, whose sum is σ = 423882890. Its totient is φ = 423882888.

The previous prime is 423882869. The next prime is 423882917. The reversal of 423882889 is 988288324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 296012025 + 127870864 = 17205^2 + 11308^2 .

It is a cyclic number.

It is not a de Polignac number, because 423882889 - 2⁹ = 423882377 is a prime.

It is not a weakly prime, because it can be changed into another prime (423882829) 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, 211941444 + 211941445.

It is an arithmetic number, because the mean of its divisors is an integer number (211941445).

Almost surely, 2^423882889 is an apocalyptic number.

It is an amenable number.

423882889 is a deficient number, since it is larger than the sum of its proper divisors (1).

423882889 is an equidigital number, since it uses as much as digits as its factorization.

423882889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1769472, while the sum is 52.

The square root of 423882889 is about 20588.4163791196. The cubic root of 423882889 is about 751.1879774341.

The spelling of 423882889 in words is "four hundred twenty-three million, eight hundred eighty-two thousand, eight hundred eighty-nine".