389881013 has 8 divisors (see below), whose sum is σ = 399651840. Its totient is φ = 380122720.

The previous prime is 389880989. The next prime is 389881033. The reversal of 389881013 is 310188983.

It is a happy number.

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 389881013 - 2¹² = 389876917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389881033) 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, 108398 + ... + 111936.

It is an arithmetic number, because the mean of its divisors is an integer number (49956480).

Almost surely, 2^389881013 is an apocalyptic number.

It is an amenable number.

389881013 is a deficient number, since it is larger than the sum of its proper divisors (9770827).

389881013 is a wasteful number, since it uses less digits than its factorization.

389881013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6267.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 389881013 is about 19745.4048578397. The cubic root of 389881013 is about 730.5400476174.

The spelling of 389881013 in words is "three hundred eighty-nine million, eight hundred eighty-one thousand, thirteen".