38889789 has 8 divisors (see below), whose sum is σ = 54582240. Its totient is φ = 24561936.

The previous prime is 38889787. The next prime is 38889793. The reversal of 38889789 is 98798883.

38889789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 38889789 - 2¹ = 38889787 is a prime.

It is a super-4 number, since 4×38889789⁴ (a number of 31 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38889787) 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, 341082 + ... + 341195.

It is an arithmetic number, because the mean of its divisors is an integer number (6822780).

Almost surely, 2^38889789 is an apocalyptic number.

It is an amenable number.

38889789 is a deficient number, since it is larger than the sum of its proper divisors (15692451).

38889789 is a wasteful number, since it uses less digits than its factorization.

38889789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682299.

The product of its digits is 6967296, while the sum is 60.

The square root of 38889789 is about 6236.1678136497. The cubic root of 38889789 is about 338.8013994981.

The spelling of 38889789 in words is "thirty-eight million, eight hundred eighty-nine thousand, seven hundred eighty-nine".