3798217 has 4 divisors (see below), whose sum is σ = 3929220. Its totient is φ = 3667216.

The previous prime is 3798187. The next prime is 3798239. The reversal of 3798217 is 7128973.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2835856 + 962361 = 1684^2 + 981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3798217 is a prime.

It is a Duffinian number.

3798217 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3798017) 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 3 ways as a sum of consecutive naturals, for example, 65458 + ... + 65515.

It is an arithmetic number, because the mean of its divisors is an integer number (982305).

Almost surely, 2^3798217 is an apocalyptic number.

It is an amenable number.

3798217 is a deficient number, since it is larger than the sum of its proper divisors (131003).

3798217 is a wasteful number, since it uses less digits than its factorization.

3798217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131002.

The product of its digits is 21168, while the sum is 37.

The square root of 3798217 is about 1948.9014854528. The cubic root of 3798217 is about 156.0246646296.

The spelling of 3798217 in words is "three million, seven hundred ninety-eight thousand, two hundred seventeen".