38913211 has 4 divisors (see below), whose sum is σ = 38969424. Its totient is φ = 38857000.

The previous prime is 38913209. The next prime is 38913229. The reversal of 38913211 is 11231983.

38913211 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.

It is a cyclic number.

It is not a de Polignac number, because 38913211 - 2¹ = 38913209 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 38913211.

It is not an unprimeable number, because it can be changed into a prime (38913811) 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, 27055 + ... + 28456.

It is an arithmetic number, because the mean of its divisors is an integer number (9742356).

Almost surely, 2^38913211 is an apocalyptic number.

38913211 is a deficient number, since it is larger than the sum of its proper divisors (56213).

38913211 is an equidigital number, since it uses as much as digits as its factorization.

38913211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56212.

The product of its digits is 1296, while the sum is 28.

The square root of 38913211 is about 6238.0454470932. The cubic root of 38913211 is about 338.8694020427.

The spelling of 38913211 in words is "thirty-eight million, nine hundred thirteen thousand, two hundred eleven".