389858087 has 2 divisors, whose sum is σ = 389858088. Its totient is φ = 389858086.

The previous prime is 389858057. The next prime is 389858111. The reversal of 389858087 is 780858983.

It is a strong prime.

It is an emirp because it is prime and its reverse (780858983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 389858087 - 2¹² = 389853991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389858047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194929043 + 194929044.

It is an arithmetic number, because the mean of its divisors is an integer number (194929044).

Almost surely, 2^389858087 is an apocalyptic number.

389858087 is a deficient number, since it is larger than the sum of its proper divisors (1).

389858087 is an equidigital number, since it uses as much as digits as its factorization.

389858087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3870720, while the sum is 56.

The square root of 389858087 is about 19744.8243091702. The cubic root of 389858087 is about 730.5257281294.

The spelling of 389858087 in words is "three hundred eighty-nine million, eight hundred fifty-eight thousand, eighty-seven".