7244729 has 4 divisors (see below), whose sum is σ = 7381476. Its totient is φ = 7107984.

The previous prime is 7244723. The next prime is 7244753. The reversal of 7244729 is 9274427.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9274427 = 433 ⋅21419.

It can be written as a sum of positive squares in 2 ways, for example, as 4515625 + 2729104 = 2125^2 + 1652^2 .

It is a cyclic number.

It is not a de Polignac number, because 7244729 - 2²⁰ = 6196153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7244723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68294 + ... + 68399.

It is an arithmetic number, because the mean of its divisors is an integer number (1845369).

Almost surely, 2^7244729 is an apocalyptic number.

It is an amenable number.

7244729 is a deficient number, since it is larger than the sum of its proper divisors (136747).

7244729 is a wasteful number, since it uses less digits than its factorization.

7244729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136746.

The product of its digits is 28224, while the sum is 35.

The square root of 7244729 is about 2691.6034254697. The cubic root of 7244729 is about 193.4969163132.

The spelling of 7244729 in words is "seven million, two hundred forty-four thousand, seven hundred twenty-nine".