38828609 has 8 divisors (see below), whose sum is σ = 41028480. Its totient is φ = 36644400.

The previous prime is 38828591. The next prime is 38828611. The reversal of 38828609 is 90682883.

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 38828609 - 2²⁰ = 37780033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38828609.

It is not an unprimeable number, because it can be changed into a prime (38828659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1379 + ... + 8919.

It is an arithmetic number, because the mean of its divisors is an integer number (5128560).

Almost surely, 2^38828609 is an apocalyptic number.

It is an amenable number.

38828609 is a deficient number, since it is larger than the sum of its proper divisors (2199871).

38828609 is a wasteful number, since it uses less digits than its factorization.

38828609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7831.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 38828609 is about 6231.2606268716. The cubic root of 38828609 is about 338.6236429103.

The spelling of 38828609 in words is "thirty-eight million, eight hundred twenty-eight thousand, six hundred nine".