8214813 has 12 divisors (see below), whose sum is σ = 11893180. Its totient is φ = 5463936.

The previous prime is 8214799. The next prime is 8214827. The reversal of 8214813 is 3184128.

It is an interprime number because it is at equal distance from previous prime (8214799) and next prime (8214827).

It can be written as a sum of positive squares in 2 ways, for example, as 580644 + 7634169 = 762^2 + 2763^2 .

It is not a de Polignac number, because 8214813 - 2⁵ = 8214781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8214113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4773 + ... + 6261.

Almost surely, 2^8214813 is an apocalyptic number.

It is an amenable number.

8214813 is a deficient number, since it is larger than the sum of its proper divisors (3678367).

8214813 is a wasteful number, since it uses less digits than its factorization.

8214813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108 (or 2105 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 8214813 is about 2866.1495076147. The cubic root of 8214813 is about 201.7743207138.

The spelling of 8214813 in words is "eight million, two hundred fourteen thousand, eight hundred thirteen".