38785189 has 4 divisors (see below), whose sum is σ = 38823840. Its totient is φ = 38746540.

The previous prime is 38785181. The next prime is 38785193. The reversal of 38785189 is 98158783.

38785189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98158783 = 8011 ⋅12253.

It is a cyclic number.

It is not a de Polignac number, because 38785189 - 2³ = 38785181 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 (38785181) 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 3 ways as a sum of consecutive naturals, for example, 17779 + ... + 19840.

It is an arithmetic number, because the mean of its divisors is an integer number (9705960).

Almost surely, 2^38785189 is an apocalyptic number.

It is an amenable number.

38785189 is a deficient number, since it is larger than the sum of its proper divisors (38651).

38785189 is a wasteful number, since it uses less digits than its factorization.

38785189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38650.

The product of its digits is 483840, while the sum is 49.

The square root of 38785189 is about 6227.7756061053. The cubic root of 38785189 is about 338.4973741366.

The spelling of 38785189 in words is "thirty-eight million, seven hundred eighty-five thousand, one hundred eighty-nine".