38738217 has 8 divisors (see below), whose sum is σ = 59029696. Its totient is φ = 22136112.

The previous prime is 38738213. The next prime is 38738237. The reversal of 38738217 is 71283783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38738217 - 2² = 38738213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38738213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 922318 + ... + 922359.

It is an arithmetic number, because the mean of its divisors is an integer number (7378712).

Almost surely, 2^38738217 is an apocalyptic number.

It is an amenable number.

38738217 is a deficient number, since it is larger than the sum of its proper divisors (20291479).

38738217 is a wasteful number, since it uses less digits than its factorization.

38738217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844687.

The product of its digits is 56448, while the sum is 39.

The square root of 38738217 is about 6224.0032937009. The cubic root of 38738217 is about 338.3606697049.

It can be divided in two parts, 3873 and 8217, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 38738217 in words is "thirty-eight million, seven hundred thirty-eight thousand, two hundred seventeen".