389144679 has 16 divisors (see below), whose sum is σ = 646890240. Its totient is φ = 202152960.

The previous prime is 389144669. The next prime is 389144683. The reversal of 389144679 is 976441983.

It is not a de Polignac number, because 389144679 - 2⁴ = 389144663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389144629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 842074 + ... + 842535.

It is an arithmetic number, because the mean of its divisors is an integer number (40430640).

Almost surely, 2^389144679 is an apocalyptic number.

389144679 is a deficient number, since it is larger than the sum of its proper divisors (257745561).

389144679 is a wasteful number, since it uses less digits than its factorization.

389144679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684630.

The product of its digits is 1306368, while the sum is 51.

The square root of 389144679 is about 19726.7503405908. The cubic root of 389144679 is about 730.0798555289.

The spelling of 389144679 in words is "three hundred eighty-nine million, one hundred forty-four thousand, six hundred seventy-nine".