389064839 has 8 divisors (see below), whose sum is σ = 412769520. Its totient is φ = 365451136.

The previous prime is 389064833. The next prime is 389064853. The reversal of 389064839 is 938460983.

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

It is a cyclic number.

It is not a de Polignac number, because 389064839 - 2¹² = 389060743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389064833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13829 + ... + 31134.

It is an arithmetic number, because the mean of its divisors is an integer number (51596190).

Almost surely, 2^389064839 is an apocalyptic number.

389064839 is a deficient number, since it is larger than the sum of its proper divisors (23704681).

389064839 is a wasteful number, since it uses less digits than its factorization.

389064839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45489.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 389064839 is about 19724.7265887261. The cubic root of 389064839 is about 730.0299224615.

The spelling of 389064839 in words is "three hundred eighty-nine million, sixty-four thousand, eight hundred thirty-nine".