7211972 has 24 divisors (see below), whose sum is σ = 13263936. Its totient is φ = 3424608.

The previous prime is 7211921. The next prime is 7211977. The reversal of 7211972 is 2791127.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7211977) 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 7 ways as a sum of consecutive naturals, for example, 25343 + ... + 25625.

It is an arithmetic number, because the mean of its divisors is an integer number (552664).

Almost surely, 2^7211972 is an apocalyptic number.

It is an amenable number.

7211972 is a deficient number, since it is larger than the sum of its proper divisors (6051964).

7211972 is a wasteful number, since it uses less digits than its factorization.

7211972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587 (or 585 counting only the distinct ones).

The product of its digits is 1764, while the sum is 29.

The square root of 7211972 is about 2685.5114969033. The cubic root of 7211972 is about 193.2048439418.

The spelling of 7211972 in words is "seven million, two hundred eleven thousand, nine hundred seventy-two".