38389997 has 8 divisors (see below), whose sum is σ = 40995840. Its totient is φ = 35869680.

The previous prime is 38389991. The next prime is 38390017. The reversal of 38389997 is 79998383.

38389997 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 a cyclic number.

It is not a de Polignac number, because 38389997 - 2¹⁴ = 38373613 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 (38389991) 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, 20453 + ... + 22250.

It is an arithmetic number, because the mean of its divisors is an integer number (5124480).

Almost surely, 2^38389997 is an apocalyptic number.

It is an amenable number.

38389997 is a deficient number, since it is larger than the sum of its proper divisors (2605843).

38389997 is a wasteful number, since it uses less digits than its factorization.

38389997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42763.

The product of its digits is 2939328, while the sum is 56.

The square root of 38389997 is about 6195.9661877709. The cubic root of 38389997 is about 337.3437689344.

The spelling of 38389997 in words is "thirty-eight million, three hundred eighty-nine thousand, nine hundred ninety-seven".