7284213 has 6 divisors (see below), whose sum is σ = 10521654. Its totient is φ = 4856136.

The previous prime is 7284197. The next prime is 7284217. The reversal of 7284213 is 3124827.

It can be written as a sum of positive squares in only one way, i.e., 7273809 + 10404 = 2697^2 + 102^2 .

It is not a de Polignac number, because 7284213 - 2⁴ = 7284197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7284217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 404670 + ... + 404687.

It is an arithmetic number, because the mean of its divisors is an integer number (1753609).

Almost surely, 2^7284213 is an apocalyptic number.

It is an amenable number.

7284213 is a deficient number, since it is larger than the sum of its proper divisors (3237441).

7284213 is a wasteful number, since it uses less digits than its factorization.

7284213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809363 (or 809360 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 7284213 is about 2698.9281205693. The cubic root of 7284213 is about 193.8478010573.

The spelling of 7284213 in words is "seven million, two hundred eighty-four thousand, two hundred thirteen".