38855887 has 16 divisors (see below), whose sum is σ = 45895680. Its totient is φ = 32205888.

The previous prime is 38855857. The next prime is 38855909. The reversal of 38855887 is 78855883.

38855887 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 38855887 - 2¹¹ = 38853839 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 (38855827) 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, 28618 + ... + 29944.

It is an arithmetic number, because the mean of its divisors is an integer number (2868480).

Almost surely, 2^38855887 is an apocalyptic number.

38855887 is a deficient number, since it is larger than the sum of its proper divisors (7039793).

38855887 is a wasteful number, since it uses less digits than its factorization.

38855887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470.

The product of its digits is 2150400, while the sum is 52.

The square root of 38855887 is about 6233.4490452718. The cubic root of 38855887 is about 338.7029213406.

The spelling of 38855887 in words is "thirty-eight million, eight hundred fifty-five thousand, eight hundred eighty-seven".