386159989 has 2 divisors, whose sum is σ = 386159990. Its totient is φ = 386159988.

The previous prime is 386159953. The next prime is 386159993. The reversal of 386159989 is 989951683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 345327889 + 40832100 = 18583^2 + 6390^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-386159989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (386151989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193079994 + 193079995.

It is an arithmetic number, because the mean of its divisors is an integer number (193079995).

Almost surely, 2^386159989 is an apocalyptic number.

It is an amenable number.

386159989 is a deficient number, since it is larger than the sum of its proper divisors (1).

386159989 is an equidigital number, since it uses as much as digits as its factorization.

386159989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4199040, while the sum is 58.

The square root of 386159989 is about 19650.9538954220. The cubic root of 386159989 is about 728.2085232927.

The spelling of 386159989 in words is "three hundred eighty-six million, one hundred fifty-nine thousand, nine hundred eighty-nine".