7271272 has 8 divisors (see below), whose sum is σ = 13633650. Its totient is φ = 3635632.

The previous prime is 7271237. The next prime is 7271273. The reversal of 7271272 is 2721727.

It can be written as a sum of positive squares in only one way, i.e., 4468996 + 2802276 = 2114^2 + 1674^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 7271272.

It is not an unprimeable number, because it can be changed into a prime (7271273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 454447 + ... + 454462.

Almost surely, 2^7271272 is an apocalyptic number.

It is an amenable number.

7271272 is a deficient number, since it is larger than the sum of its proper divisors (6362378).

7271272 is a wasteful number, since it uses less digits than its factorization.

7271272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908915 (or 908911 counting only the distinct ones).

The product of its digits is 2744, while the sum is 28.

The square root of 7271272 is about 2696.5296215692. The cubic root of 7271272 is about 193.7329375193.

Adding to 7271272 its reverse (2721727), we get a palindrome (9992999).

The spelling of 7271272 in words is "seven million, two hundred seventy-one thousand, two hundred seventy-two".