386900191 has 2 divisors, whose sum is σ = 386900192. Its totient is φ = 386900190.

The previous prime is 386900153. The next prime is 386900207. The reversal of 386900191 is 191009683.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 386900191 - 2¹⁵ = 386867423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 386900191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (386900291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193450095 + 193450096.

It is an arithmetic number, because the mean of its divisors is an integer number (193450096).

Almost surely, 2^386900191 is an apocalyptic number.

386900191 is a deficient number, since it is larger than the sum of its proper divisors (1).

386900191 is an equidigital number, since it uses as much as digits as its factorization.

386900191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 386900191 is about 19669.7786210216. The cubic root of 386900191 is about 728.6735096398.

The spelling of 386900191 in words is "three hundred eighty-six million, nine hundred thousand, one hundred ninety-one".