389480393 has 2 divisors, whose sum is σ = 389480394. Its totient is φ = 389480392.

The previous prime is 389480383. The next prime is 389480401. The reversal of 389480393 is 393084983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 258309184 + 131171209 = 16072^2 + 11453^2 .

It is a cyclic number.

It is not a de Polignac number, because 389480393 - 2²⁰ = 388431817 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (389480383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194740196 + 194740197.

It is an arithmetic number, because the mean of its divisors is an integer number (194740197).

Almost surely, 2^389480393 is an apocalyptic number.

It is an amenable number.

389480393 is a deficient number, since it is larger than the sum of its proper divisors (1).

389480393 is an equidigital number, since it uses as much as digits as its factorization.

389480393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 389480393 is about 19735.2576116959. The cubic root of 389480393 is about 730.2897411180.

The spelling of 389480393 in words is "three hundred eighty-nine million, four hundred eighty thousand, three hundred ninety-three".