8214520 has 32 divisors (see below), whose sum is σ = 18630000. Its totient is φ = 3259648.

The previous prime is 8214509. The next prime is 8214527. The reversal of 8214520 is 254128.

It is a junction number, because it is equal to n+sod(n) for n = 8214491 and 8214500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8214527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4731 + ... + 6229.

Almost surely, 2^8214520 is an apocalyptic number.

It is an amenable number.

8214520 is an abundant number, since it is smaller than the sum of its proper divisors (10415480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8214520 is a wasteful number, since it uses less digits than its factorization.

8214520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647 (or 1643 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 8214520 is about 2866.0983932866. The cubic root of 8214520 is about 201.7719217719.

Adding to 8214520 its reverse (254128), we get a palindrome (8468648).

The spelling of 8214520 in words is "eight million, two hundred fourteen thousand, five hundred twenty".