389869147 has 2 divisors, whose sum is σ = 389869148. Its totient is φ = 389869146.

The previous prime is 389869099. The next prime is 389869153. The reversal of 389869147 is 741968983.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 389869147 - 2⁷ = 389869019 is a prime.

It is not a weakly prime, because it can be changed into another prime (389869157) 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, 194934573 + 194934574.

It is an arithmetic number, because the mean of its divisors is an integer number (194934574).

Almost surely, 2^389869147 is an apocalyptic number.

389869147 is a deficient number, since it is larger than the sum of its proper divisors (1).

389869147 is an equidigital number, since it uses as much as digits as its factorization.

389869147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 55.

The square root of 389869147 is about 19745.1043805800. The cubic root of 389869147 is about 730.5326362313.

The spelling of 389869147 in words is "three hundred eighty-nine million, eight hundred sixty-nine thousand, one hundred forty-seven".