38866667 has 4 divisors (see below), whose sum is σ = 44419056. Its totient is φ = 33314280.

The previous prime is 38866643. The next prime is 38866669. The reversal of 38866667 is 76666883.

38866667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76666883 = 269 ⋅285007.

It is a cyclic number.

It is not a de Polignac number, because 38866667 - 2²⁰ = 37818091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38866669) 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 3 ways as a sum of consecutive naturals, for example, 2776184 + ... + 2776197.

It is an arithmetic number, because the mean of its divisors is an integer number (11104764).

Almost surely, 2^38866667 is an apocalyptic number.

38866667 is a deficient number, since it is larger than the sum of its proper divisors (5552389).

38866667 is an equidigital number, since it uses as much as digits as its factorization.

38866667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5552388.

The product of its digits is 1741824, while the sum is 50.

The square root of 38866667 is about 6234.3136751370. The cubic root of 38866667 is about 338.7342411754.

The spelling of 38866667 in words is "thirty-eight million, eight hundred sixty-six thousand, six hundred sixty-seven".