8217012 has 12 divisors (see below), whose sum is σ = 19173056. Its totient is φ = 2739000.

The previous prime is 8217007. The next prime is 8217017. The reversal of 8217012 is 2107128.

It is an interprime number because it is at equal distance from previous prime (8217007) and next prime (8217017).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 8217012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8217017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342364 + ... + 342387.

Almost surely, 2^8217012 is an apocalyptic number.

It is an amenable number.

8217012 is an abundant number, since it is smaller than the sum of its proper divisors (10956044).

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

8217012 is a wasteful number, since it uses less digits than its factorization.

8217012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684758 (or 684756 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 8217012 is about 2866.5330976634. The cubic root of 8217012 is about 201.7923232395.

The spelling of 8217012 in words is "eight million, two hundred seventeen thousand, twelve".