8216766 has 24 divisors (see below), whose sum is σ = 17858880. Its totient is φ = 2730336.

The previous prime is 8216743. The next prime is 8216777. The reversal of 8216766 is 6676128.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 8216766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8146 + ... + 9098.

It is an arithmetic number, because the mean of its divisors is an integer number (744120).

Almost surely, 2^8216766 is an apocalyptic number.

8216766 is an abundant number, since it is smaller than the sum of its proper divisors (9642114).

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

8216766 is a wasteful number, since it uses less digits than its factorization.

8216766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440 (or 1437 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 8216766 is about 2866.4901883663. The cubic root of 8216766 is about 201.7903094740.

The spelling of 8216766 in words is "eight million, two hundred sixteen thousand, seven hundred sixty-six".