485492989 has 2 divisors, whose sum is σ = 485492990. Its totient is φ = 485492988.

The previous prime is 485492983. The next prime is 485493017. The reversal of 485492989 is 989294584.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 365765625 + 119727364 = 19125^2 + 10942^2 .

It is a cyclic number.

It is not a de Polignac number, because 485492989 - 2³ = 485492981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (485492981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242746494 + 242746495.

It is an arithmetic number, because the mean of its divisors is an integer number (242746495).

Almost surely, 2^485492989 is an apocalyptic number.

It is an amenable number.

485492989 is a deficient number, since it is larger than the sum of its proper divisors (1).

485492989 is an equidigital number, since it uses as much as digits as its factorization.

485492989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7464960, while the sum is 58.

The square root of 485492989 is about 22033.9054413874. The cubic root of 485492989 is about 785.9489188704.

The spelling of 485492989 in words is "four hundred eighty-five million, four hundred ninety-two thousand, nine hundred eighty-nine".