389077387 has 2 divisors, whose sum is σ = 389077388. Its totient is φ = 389077386.

The previous prime is 389077363. The next prime is 389077391. The reversal of 389077387 is 783770983.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 389077387 - 2⁷ = 389077259 is a prime.

It is not a weakly prime, because it can be changed into another prime (389078387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194538693 + 194538694.

It is an arithmetic number, because the mean of its divisors is an integer number (194538694).

Almost surely, 2^389077387 is an apocalyptic number.

389077387 is a deficient number, since it is larger than the sum of its proper divisors (1).

389077387 is an equidigital number, since it uses as much as digits as its factorization.

389077387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1778112, while the sum is 52.

The square root of 389077387 is about 19725.0446640812. The cubic root of 389077387 is about 730.0377706109.

The spelling of 389077387 in words is "three hundred eighty-nine million, seventy-seven thousand, three hundred eighty-seven".