389289039 has 8 divisors (see below), whose sum is σ = 519154560. Its totient is φ = 259474776.

The previous prime is 389289037. The next prime is 389289067. The reversal of 389289039 is 930982983.

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

It is not a de Polignac number, because 389289039 - 2¹ = 389289037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 389288982 and 389289000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389289037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11502 + ... + 30180.

It is an arithmetic number, because the mean of its divisors is an integer number (64894320).

Almost surely, 2^389289039 is an apocalyptic number.

389289039 is a deficient number, since it is larger than the sum of its proper divisors (129865521).

389289039 is a wasteful number, since it uses less digits than its factorization.

389289039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25629.

The product of its (nonzero) digits is 839808, while the sum is 51.

The square root of 389289039 is about 19730.4089922130. The cubic root of 389289039 is about 730.1701229827.

The spelling of 389289039 in words is "three hundred eighty-nine million, two hundred eighty-nine thousand, thirty-nine".