389851967 has 2 divisors, whose sum is σ = 389851968. Its totient is φ = 389851966.

The previous prime is 389851927. The next prime is 389851991. The reversal of 389851967 is 769158983.

It is a strong prime.

It is an emirp because it is prime and its reverse (769158983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 389851967 - 2⁸ = 389851711 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 (389851927) 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, 194925983 + 194925984.

It is an arithmetic number, because the mean of its divisors is an integer number (194925984).

Almost surely, 2^389851967 is an apocalyptic number.

389851967 is a deficient number, since it is larger than the sum of its proper divisors (1).

389851967 is an equidigital number, since it uses as much as digits as its factorization.

389851967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 56.

The square root of 389851967 is about 19744.6693312398. The cubic root of 389851967 is about 730.5219055069.

The spelling of 389851967 in words is "three hundred eighty-nine million, eight hundred fifty-one thousand, nine hundred sixty-seven".