3828217 has 2 divisors, whose sum is σ = 3828218. Its totient is φ = 3828216.

The previous prime is 3828169. The next prime is 3828229. The reversal of 3828217 is 7128283.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3154176 + 674041 = 1776^2 + 821^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3828217 is a prime.

It is not a weakly prime, because it can be changed into another prime (3828287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1914108 + 1914109.

It is an arithmetic number, because the mean of its divisors is an integer number (1914109).

Almost surely, 2^3828217 is an apocalyptic number.

It is an amenable number.

3828217 is a deficient number, since it is larger than the sum of its proper divisors (1).

3828217 is an equidigital number, since it uses as much as digits as its factorization.

3828217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 31.

The square root of 3828217 is about 1956.5829908287. The cubic root of 3828217 is about 156.4343717995.

The spelling of 3828217 in words is "three million, eight hundred twenty-eight thousand, two hundred seventeen".