389109166 has 8 divisors (see below), whose sum is σ = 589442904. Its totient is φ = 192628200.

The previous prime is 389109163. The next prime is 389109173. The reversal of 389109166 is 661901983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389109163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 962940 + ... + 963343.

It is an arithmetic number, because the mean of its divisors is an integer number (73680363).

Almost surely, 2^389109166 is an apocalyptic number.

389109166 is a deficient number, since it is larger than the sum of its proper divisors (200333738).

389109166 is a wasteful number, since it uses less digits than its factorization.

389109166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926386.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 389109166 is about 19725.8501971398. The cubic root of 389109166 is about 730.0576460388.

The spelling of 389109166 in words is "three hundred eighty-nine million, one hundred nine thousand, one hundred sixty-six".