389701189 has 2 divisors, whose sum is σ = 389701190. Its totient is φ = 389701188.

The previous prime is 389701181. The next prime is 389701223. The reversal of 389701189 is 981107983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 282744225 + 106956964 = 16815^2 + 10342^2 .

It is a cyclic number.

It is not a de Polignac number, because 389701189 - 2³ = 389701181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389701181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194850594 + 194850595.

It is an arithmetic number, because the mean of its divisors is an integer number (194850595).

Almost surely, 2^389701189 is an apocalyptic number.

It is an amenable number.

389701189 is a deficient number, since it is larger than the sum of its proper divisors (1).

389701189 is an equidigital number, since it uses as much as digits as its factorization.

389701189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 46.

The square root of 389701189 is about 19740.8507668743. The cubic root of 389701189 is about 730.4277151952.

The spelling of 389701189 in words is "three hundred eighty-nine million, seven hundred one thousand, one hundred eighty-nine".