7224772 has 6 divisors (see below), whose sum is σ = 12643358. Its totient is φ = 3612384.

The previous prime is 7224761. The next prime is 7224773. The reversal of 7224772 is 2774227.

It can be written as a sum of positive squares in only one way, i.e., 6071296 + 1153476 = 2464^2 + 1074^2 .

It is not an unprimeable number, because it can be changed into a prime (7224773) 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 as a sum of consecutive naturals, namely, 903093 + ... + 903100.

Almost surely, 2^7224772 is an apocalyptic number.

It is an amenable number.

7224772 is a deficient number, since it is larger than the sum of its proper divisors (5418586).

7224772 is a wasteful number, since it uses less digits than its factorization.

7224772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806197 (or 1806195 counting only the distinct ones).

The product of its digits is 10976, while the sum is 31.

The square root of 7224772 is about 2687.8935990846. The cubic root of 7224772 is about 193.3190780875.

Adding to 7224772 its reverse (2774227), we get a palindrome (9998999).

The spelling of 7224772 in words is "seven million, two hundred twenty-four thousand, seven hundred seventy-two".