393141589 has 2 divisors, whose sum is σ = 393141590. Its totient is φ = 393141588.

The previous prime is 393141533. The next prime is 393141653. The reversal of 393141589 is 985141393.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214036900 + 179104689 = 14630^2 + 13383^2 .

It is a cyclic number.

It is not a de Polignac number, because 393141589 - 2¹⁹ = 392617301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (393141689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196570794 + 196570795.

It is an arithmetic number, because the mean of its divisors is an integer number (196570795).

Almost surely, 2^393141589 is an apocalyptic number.

It is an amenable number.

393141589 is a deficient number, since it is larger than the sum of its proper divisors (1).

393141589 is an equidigital number, since it uses as much as digits as its factorization.

393141589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 43.

The square root of 393141589 is about 19827.7983901390. The cubic root of 393141589 is about 732.5708995738.

The spelling of 393141589 in words is "three hundred ninety-three million, one hundred forty-one thousand, five hundred eighty-nine".