389698123 has 4 divisors (see below), whose sum is σ = 412621560. Its totient is φ = 366774688.

The previous prime is 389698093. The next prime is 389698129. The reversal of 389698123 is 321896983.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 389698123 - 2²¹ = 387600971 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389698129) 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, 11461693 + ... + 11461726.

It is an arithmetic number, because the mean of its divisors is an integer number (103155390).

Almost surely, 2^389698123 is an apocalyptic number.

389698123 is a deficient number, since it is larger than the sum of its proper divisors (22923437).

389698123 is a wasteful number, since it uses less digits than its factorization.

389698123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22923436.

The product of its digits is 559872, while the sum is 49.

The square root of 389698123 is about 19740.7731104939. The cubic root of 389698123 is about 730.4257996273.

The spelling of 389698123 in words is "three hundred eighty-nine million, six hundred ninety-eight thousand, one hundred twenty-three".