389822813 has 8 divisors (see below), whose sum is σ = 392895456. Its totient is φ = 386758800.

The previous prime is 389822789. The next prime is 389822827. The reversal of 389822813 is 318228983.

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 389822813 - 2⁸ = 389822557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389822833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110903 + ... + 114363.

It is an arithmetic number, because the mean of its divisors is an integer number (49111932).

Almost surely, 2^389822813 is an apocalyptic number.

It is an amenable number.

389822813 is a deficient number, since it is larger than the sum of its proper divisors (3072643).

389822813 is a wasteful number, since it uses less digits than its factorization.

389822813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4315.

The product of its digits is 165888, while the sum is 44.

The square root of 389822813 is about 19743.9310422216. The cubic root of 389822813 is about 730.5036950336.

The spelling of 389822813 in words is "three hundred eighty-nine million, eight hundred twenty-two thousand, eight hundred thirteen".