485020889 has 2 divisors, whose sum is σ = 485020890. Its totient is φ = 485020888.

The previous prime is 485020873. The next prime is 485020919. The reversal of 485020889 is 988020584.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 470542864 + 14478025 = 21692^2 + 3805^2 .

It is a cyclic number.

It is not a de Polignac number, because 485020889 - 2⁴ = 485020873 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (485020189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242510444 + 242510445.

It is an arithmetic number, because the mean of its divisors is an integer number (242510445).

Almost surely, 2^485020889 is an apocalyptic number.

It is an amenable number.

485020889 is a deficient number, since it is larger than the sum of its proper divisors (1).

485020889 is an equidigital number, since it uses as much as digits as its factorization.

485020889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 184320, while the sum is 44.

The square root of 485020889 is about 22023.1898007532. The cubic root of 485020889 is about 785.6940804359.

The spelling of 485020889 in words is "four hundred eighty-five million, twenty thousand, eight hundred eighty-nine".