8728212 has 12 divisors (see below), whose sum is σ = 20365856. Its totient is φ = 2909400.

The previous prime is 8728211. The next prime is 8728241. The reversal of 8728212 is 2128278.

It is a happy number.

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

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 8728212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8728211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363664 + ... + 363687.

Almost surely, 2^8728212 is an apocalyptic number.

It is an amenable number.

8728212 is an abundant number, since it is smaller than the sum of its proper divisors (11637644).

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

8728212 is a wasteful number, since it uses less digits than its factorization.

8728212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727358 (or 727356 counting only the distinct ones).

The product of its digits is 3584, while the sum is 30.

The square root of 8728212 is about 2954.3547518875. The cubic root of 8728212 is about 205.8930855645.

The spelling of 8728212 in words is "eight million, seven hundred twenty-eight thousand, two hundred twelve".