38336921 has 16 divisors (see below), whose sum is σ = 47650176. Its totient is φ = 30087936.

The previous prime is 38336917. The next prime is 38336933. The reversal of 38336921 is 12963383.

38336921 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 38336921 - 2² = 38336917 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38336911) 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, 50 + ... + 8756.

It is an arithmetic number, because the mean of its divisors is an integer number (2978136).

Almost surely, 2^38336921 is an apocalyptic number.

It is an amenable number.

38336921 is a deficient number, since it is larger than the sum of its proper divisors (9313255).

38336921 is a wasteful number, since it uses less digits than its factorization.

38336921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8768.

The product of its digits is 23328, while the sum is 35.

The square root of 38336921 is about 6191.6815971108. The cubic root of 38336921 is about 337.1882326224.

The spelling of 38336921 in words is "thirty-eight million, three hundred thirty-six thousand, nine hundred twenty-one".