493655189 has 2 divisors, whose sum is σ = 493655190. Its totient is φ = 493655188.

The previous prime is 493655167. The next prime is 493655203. The reversal of 493655189 is 981556394.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 435056164 + 58599025 = 20858^2 + 7655^2 .

It is a cyclic number.

It is not a de Polignac number, because 493655189 - 2⁸ = 493654933 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (493655489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246827594 + 246827595.

It is an arithmetic number, because the mean of its divisors is an integer number (246827595).

Almost surely, 2^493655189 is an apocalyptic number.

It is an amenable number.

493655189 is a deficient number, since it is larger than the sum of its proper divisors (1).

493655189 is an equidigital number, since it uses as much as digits as its factorization.

493655189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1166400, while the sum is 50.

The square root of 493655189 is about 22218.3525266839. The cubic root of 493655189 is about 790.3289710401.

The spelling of 493655189 in words is "four hundred ninety-three million, six hundred fifty-five thousand, one hundred eighty-nine".