8219660 has 12 divisors (see below), whose sum is σ = 17261328. Its totient is φ = 3287856.

The previous prime is 8219657. The next prime is 8219711. The reversal of 8219660 is 669128.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205472 + ... + 205511.

It is an arithmetic number, because the mean of its divisors is an integer number (1438444).

Almost surely, 2^8219660 is an apocalyptic number.

It is an amenable number.

8219660 is an abundant number, since it is smaller than the sum of its proper divisors (9041668).

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

8219660 is a wasteful number, since it uses less digits than its factorization.

8219660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410992 (or 410990 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 8219660 is about 2866.9949424441. The cubic root of 8219660 is about 201.8139973259.

The spelling of 8219660 in words is "eight million, two hundred nineteen thousand, six hundred sixty".