389336197 has 2 divisors, whose sum is σ = 389336198. Its totient is φ = 389336196.

The previous prime is 389336191. The next prime is 389336273. The reversal of 389336197 is 791633983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 215913636 + 173422561 = 14694^2 + 13169^2 .

It is a cyclic number.

It is not a de Polignac number, because 389336197 - 2¹⁵ = 389303429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 389336197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389336191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194668098 + 194668099.

It is an arithmetic number, because the mean of its divisors is an integer number (194668099).

Almost surely, 2^389336197 is an apocalyptic number.

It is an amenable number.

389336197 is a deficient number, since it is larger than the sum of its proper divisors (1).

389336197 is an equidigital number, since it uses as much as digits as its factorization.

389336197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 734832, while the sum is 49.

The square root of 389336197 is about 19731.6040148793. The cubic root of 389336197 is about 730.1996057653.

The spelling of 389336197 in words is "three hundred eighty-nine million, three hundred thirty-six thousand, one hundred ninety-seven".