7240753 has 4 divisors (see below), whose sum is σ = 7797748. Its totient is φ = 6683760.

The previous prime is 7240741. The next prime is 7240769. The reversal of 7240753 is 3570427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3570427 = 7 ⋅510061.

It can be written as a sum of positive squares in 2 ways, for example, as 3732624 + 3508129 = 1932^2 + 1873^2 .

It is a cyclic number.

It is not a de Polignac number, because 7240753 - 2⁵ = 7240721 is a prime.

It is a super-3 number, since 3×7240753³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

7240753 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7240733) 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, 278478 + ... + 278503.

It is an arithmetic number, because the mean of its divisors is an integer number (1949437).

Almost surely, 2^7240753 is an apocalyptic number.

It is an amenable number.

7240753 is a deficient number, since it is larger than the sum of its proper divisors (556995).

7240753 is a wasteful number, since it uses less digits than its factorization.

7240753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556994.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 7240753 is about 2690.8647308997. The cubic root of 7240753 is about 193.4615119742.

The spelling of 7240753 in words is "seven million, two hundred forty thousand, seven hundred fifty-three".