389422087 has 2 divisors, whose sum is σ = 389422088. Its totient is φ = 389422086.

The previous prime is 389422067. The next prime is 389422127. The reversal of 389422087 is 780224983.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 389422087 - 2⁷ = 389421959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389422037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194711043 + 194711044.

It is an arithmetic number, because the mean of its divisors is an integer number (194711044).

Almost surely, 2^389422087 is an apocalyptic number.

389422087 is a deficient number, since it is larger than the sum of its proper divisors (1).

389422087 is an equidigital number, since it uses as much as digits as its factorization.

389422087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 389422087 is about 19733.7803524819. The cubic root of 389422087 is about 730.2532973506.

The spelling of 389422087 in words is "three hundred eighty-nine million, four hundred twenty-two thousand, eighty-seven".