38789609 has 4 divisors (see below), whose sum is σ = 39447120. Its totient is φ = 38132100.

The previous prime is 38789593. The next prime is 38789629. The reversal of 38789609 is 90698783.

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.

It is a cyclic number.

It is not a de Polignac number, because 38789609 - 2⁴ = 38789593 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38789629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328667 + ... + 328784.

It is an arithmetic number, because the mean of its divisors is an integer number (9861780).

Almost surely, 2^38789609 is an apocalyptic number.

It is an amenable number.

38789609 is a deficient number, since it is larger than the sum of its proper divisors (657511).

38789609 is an equidigital number, since it uses as much as digits as its factorization.

38789609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657510.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 38789609 is about 6228.1304578501. The cubic root of 38789609 is about 338.5102321511.

It can be divided in two parts, 38789 and 609, that multiplied together give a triangular number (23622501 = T₆₈₇₃).

The spelling of 38789609 in words is "thirty-eight million, seven hundred eighty-nine thousand, six hundred nine".