8290217 has 4 divisors (see below), whose sum is σ = 8927940. Its totient is φ = 7652496.

The previous prime is 8290153. The next prime is 8290229. The reversal of 8290217 is 7120928.

It is a happy number.

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 5248681 + 3041536 = 2291^2 + 1744^2 .

It is a cyclic number.

It is not a de Polignac number, because 8290217 - 2⁶ = 8290153 is a prime.

It is an Ulam number.

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 8290217.

It is not an unprimeable number, because it can be changed into a prime (8290277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318842 + ... + 318867.

It is an arithmetic number, because the mean of its divisors is an integer number (2231985).

Almost surely, 2^8290217 is an apocalyptic number.

It is an amenable number.

8290217 is a deficient number, since it is larger than the sum of its proper divisors (637723).

8290217 is a wasteful number, since it uses less digits than its factorization.

8290217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637722.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 8290217 is about 2879.2736931386. The cubic root of 8290217 is about 202.3898054123.

The spelling of 8290217 in words is "eight million, two hundred ninety thousand, two hundred seventeen".