416289889 has 2 divisors, whose sum is σ = 416289890. Its totient is φ = 416289888.

The previous prime is 416289883. The next prime is 416289893. The reversal of 416289889 is 988982614.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 327610000 + 88679889 = 18100^2 + 9417^2 .

It is a cyclic number.

It is not a de Polignac number, because 416289889 - 2¹¹ = 416287841 is a prime.

It is not a weakly prime, because it can be changed into another prime (416289883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208144944 + 208144945.

It is an arithmetic number, because the mean of its divisors is an integer number (208144945).

Almost surely, 2^416289889 is an apocalyptic number.

It is an amenable number.

416289889 is a deficient number, since it is larger than the sum of its proper divisors (1).

416289889 is an equidigital number, since it uses as much as digits as its factorization.

416289889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1990656, while the sum is 55.

The square root of 416289889 is about 20403.1833055531. The cubic root of 416289889 is about 746.6755907690.

The spelling of 416289889 in words is "four hundred sixteen million, two hundred eighty-nine thousand, eight hundred eighty-nine".