38655569 has 16 divisors (see below), whose sum is σ = 41990400. Its totient is φ = 35453184.

The previous prime is 38655559. The next prime is 38655577. The reversal of 38655569 is 96555683.

It is a happy number.

38655569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 38655569 - 2⁴ = 38655553 is a prime.

It is a super-2 number, since 2×38655569² = 2988506029427522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38655559) 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 15 ways as a sum of consecutive naturals, for example, 143567 + ... + 143835.

It is an arithmetic number, because the mean of its divisors is an integer number (2624400).

Almost surely, 2^38655569 is an apocalyptic number.

It is an amenable number.

38655569 is a deficient number, since it is larger than the sum of its proper divisors (3334831).

38655569 is a wasteful number, since it uses less digits than its factorization.

38655569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472.

The product of its digits is 972000, while the sum is 47.

The square root of 38655569 is about 6217.3602919567. The cubic root of 38655569 is about 338.1198675026.

It can be divided in two parts, 386 and 55569, that added together give a palindrome (55955).

The spelling of 38655569 in words is "thirty-eight million, six hundred fifty-five thousand, five hundred sixty-nine".