389157667 has 2 divisors, whose sum is σ = 389157668. Its totient is φ = 389157666.

The previous prime is 389157661. The next prime is 389157689. The reversal of 389157667 is 766751983.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 389157667 - 2¹⁵ = 389124899 is a prime.

It is not a weakly prime, because it can be changed into another prime (389157661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194578833 + 194578834.

It is an arithmetic number, because the mean of its divisors is an integer number (194578834).

Almost surely, 2^389157667 is an apocalyptic number.

389157667 is a deficient number, since it is larger than the sum of its proper divisors (1).

389157667 is an equidigital number, since it uses as much as digits as its factorization.

389157667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 52.

The square root of 389157667 is about 19727.0795355014. The cubic root of 389157667 is about 730.0879777623.

The spelling of 389157667 in words is "three hundred eighty-nine million, one hundred fifty-seven thousand, six hundred sixty-seven".