38281217 has 4 divisors (see below), whose sum is σ = 41225940. Its totient is φ = 35336496.

The previous prime is 38281169. The next prime is 38281231. The reversal of 38281217 is 71218283.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71218283 = 5839 ⋅12197.

It can be written as a sum of positive squares in 2 ways, for example, as 10233601 + 28047616 = 3199^2 + 5296^2 .

It is not a de Polignac number, because 38281217 - 2⁸ = 38280961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38281277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1472342 + ... + 1472367.

It is an arithmetic number, because the mean of its divisors is an integer number (10306485).

It is a Proth number, since it is equal to 4673 ⋅ 2¹³ + 1 and 4673 < 2¹³.

Almost surely, 2^38281217 is an apocalyptic number.

It is an amenable number.

38281217 is a deficient number, since it is larger than the sum of its proper divisors (2944723).

38281217 is a wasteful number, since it uses less digits than its factorization.

38281217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2944722.

The product of its digits is 5376, while the sum is 32.

The square root of 38281217 is about 6187.1816685790. The cubic root of 38281217 is about 337.0248406289.

The spelling of 38281217 in words is "thirty-eight million, two hundred eighty-one thousand, two hundred seventeen".