38384447 has 4 divisors (see below), whose sum is σ = 40053360. Its totient is φ = 36715536.

The previous prime is 38384393. The next prime is 38384461. The reversal of 38384447 is 74448383.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74448383 = 59 ⋅1261837.

It is a cyclic number.

It is not a de Polignac number, because 38384447 - 2⁸ = 38384191 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 (38384497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834422 + ... + 834467.

It is an arithmetic number, because the mean of its divisors is an integer number (10013340).

Almost surely, 2^38384447 is an apocalyptic number.

38384447 is a deficient number, since it is larger than the sum of its proper divisors (1668913).

38384447 is a wasteful number, since it uses less digits than its factorization.

38384447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668912.

The product of its digits is 258048, while the sum is 41.

The square root of 38384447 is about 6195.5182995452. The cubic root of 38384447 is about 337.3275116774.

The spelling of 38384447 in words is "thirty-eight million, three hundred eighty-four thousand, four hundred forty-seven".