7272529 has 4 divisors (see below), whose sum is σ = 7933680. Its totient is φ = 6611380.

The previous prime is 7272527. The next prime is 7272557. The reversal of 7272529 is 9252727.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9252727 = 11 ⋅841157.

It is a cyclic number.

It is not a de Polignac number, because 7272529 - 2¹ = 7272527 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7272494 and 7272503.

It is not an unprimeable number, because it can be changed into a prime (7272527) 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 in 3 ways as a sum of consecutive naturals, for example, 330559 + ... + 330580.

It is an arithmetic number, because the mean of its divisors is an integer number (1983420).

Almost surely, 2^7272529 is an apocalyptic number.

It is an amenable number.

7272529 is a deficient number, since it is larger than the sum of its proper divisors (661151).

7272529 is a wasteful number, since it uses less digits than its factorization.

7272529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661150.

The product of its digits is 17640, while the sum is 34.

The square root of 7272529 is about 2696.7626888549. The cubic root of 7272529 is about 193.7441005488.

The spelling of 7272529 in words is "seven million, two hundred seventy-two thousand, five hundred twenty-nine".