7227812 has 6 divisors (see below), whose sum is σ = 12648678. Its totient is φ = 3613904.

The previous prime is 7227811. The next prime is 7227817. The reversal of 7227812 is 2187227.

It can be written as a sum of positive squares in only one way, i.e., 4351396 + 2876416 = 2086^2 + 1696^2 .

It is not an unprimeable number, because it can be changed into a prime (7227811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 903473 + ... + 903480.

It is an arithmetic number, because the mean of its divisors is an integer number (2108113).

Almost surely, 2^7227812 is an apocalyptic number.

It is an amenable number.

7227812 is a deficient number, since it is larger than the sum of its proper divisors (5420866).

7227812 is a wasteful number, since it uses less digits than its factorization.

7227812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806957 (or 1806955 counting only the distinct ones).

The product of its digits is 3136, while the sum is 29.

The square root of 7227812 is about 2688.4590381853. The cubic root of 7227812 is about 193.3461888664.

The spelling of 7227812 in words is "seven million, two hundred twenty-seven thousand, eight hundred twelve".