38216747 has 4 divisors (see below), whose sum is σ = 38236176. Its totient is φ = 38197320.

The previous prime is 38216743. The next prime is 38216749. The reversal of 38216747 is 74761283.

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 38216747 - 2² = 38216743 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 38216747.

It is not an unprimeable number, because it can be changed into a prime (38216743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6383 + ... + 10824.

It is an arithmetic number, because the mean of its divisors is an integer number (9559044).

Almost surely, 2^38216747 is an apocalyptic number.

38216747 is a deficient number, since it is larger than the sum of its proper divisors (19429).

38216747 is a wasteful number, since it uses less digits than its factorization.

38216747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19428.

The product of its digits is 56448, while the sum is 38.

The square root of 38216747 is about 6181.9695081746. The cubic root of 38216747 is about 336.8355380406.

The spelling of 38216747 in words is "thirty-eight million, two hundred sixteen thousand, seven hundred forty-seven".