393295489 has 2 divisors, whose sum is σ = 393295490. Its totient is φ = 393295488.

The previous prime is 393295453. The next prime is 393295531. The reversal of 393295489 is 984592393.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243110464 + 150185025 = 15592^2 + 12255^2 .

It is a cyclic number.

It is not a de Polignac number, because 393295489 - 2⁹ = 393294977 is a prime.

It is not a weakly prime, because it can be changed into another prime (393295589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196647744 + 196647745.

It is an arithmetic number, because the mean of its divisors is an integer number (196647745).

Almost surely, 2^393295489 is an apocalyptic number.

It is an amenable number.

393295489 is a deficient number, since it is larger than the sum of its proper divisors (1).

393295489 is an equidigital number, since it uses as much as digits as its factorization.

393295489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2099520, while the sum is 52.

The square root of 393295489 is about 19831.6789253961. The cubic root of 393295489 is about 732.6664783308. Note that the first 3 decimals are identical.

The spelling of 393295489 in words is "three hundred ninety-three million, two hundred ninety-five thousand, four hundred eighty-nine".