389819387 has 8 divisors (see below), whose sum is σ = 408597504. Its totient is φ = 371193768.

The previous prime is 389819357. The next prime is 389819407. The reversal of 389819387 is 783918983.

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 389819387 - 2¹⁴ = 389803003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389819357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32873 + ... + 43130.

It is an arithmetic number, because the mean of its divisors is an integer number (51074688).

Almost surely, 2^389819387 is an apocalyptic number.

389819387 is a deficient number, since it is larger than the sum of its proper divisors (18778117).

389819387 is a wasteful number, since it uses less digits than its factorization.

389819387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76249.

The product of its digits is 2612736, while the sum is 56.

The square root of 389819387 is about 19743.8442811931. The cubic root of 389819387 is about 730.5015549904.

The spelling of 389819387 in words is "three hundred eighty-nine million, eight hundred nineteen thousand, three hundred eighty-seven".