7213772 has 12 divisors (see below), whose sum is σ = 12653256. Its totient is φ = 3598560.

The previous prime is 7213771. The next prime is 7213781. The reversal of 7213772 is 2773127.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (7213771) 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 in 3 ways as a sum of consecutive naturals, for example, 128 + ... + 3800.

It is an arithmetic number, because the mean of its divisors is an integer number (1054438).

Almost surely, 2^7213772 is an apocalyptic number.

It is an amenable number.

7213772 is a deficient number, since it is larger than the sum of its proper divisors (5439484).

7213772 is a wasteful number, since it uses less digits than its factorization.

7213772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4168 (or 4166 counting only the distinct ones).

The product of its digits is 4116, while the sum is 29.

The square root of 7213772 is about 2685.8466076826. The cubic root of 7213772 is about 193.2209162814.

Adding to 7213772 its reverse (2773127), we get a palindrome (9986899).

The spelling of 7213772 in words is "seven million, two hundred thirteen thousand, seven hundred seventy-two".