7872812 has 6 divisors (see below), whose sum is σ = 13777428. Its totient is φ = 3936404.

The previous prime is 7872803. The next prime is 7872817. The reversal of 7872812 is 2182787.

It is not an unprimeable number, because it can be changed into a prime (7872817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 984098 + ... + 984105.

It is an arithmetic number, because the mean of its divisors is an integer number (2296238).

Almost surely, 2^7872812 is an apocalyptic number.

It is an amenable number.

7872812 is a deficient number, since it is larger than the sum of its proper divisors (5904616).

7872812 is a wasteful number, since it uses less digits than its factorization.

7872812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968207 (or 1968205 counting only the distinct ones).

The product of its digits is 12544, while the sum is 35.

The square root of 7872812 is about 2805.8531679331. The cubic root of 7872812 is about 198.9344329163.

The spelling of 7872812 in words is "seven million, eight hundred seventy-two thousand, eight hundred twelve".