7540723 has 4 divisors (see below), whose sum is σ = 7547760. Its totient is φ = 7533688.

The previous prime is 7540721. The next prime is 7540751. The reversal of 7540723 is 3270457.

7540723 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 7540723 - 2¹ = 7540721 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 7540691 and 7540700.

It is not an unprimeable number, because it can be changed into a prime (7540721) 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, 1540 + ... + 4177.

It is an arithmetic number, because the mean of its divisors is an integer number (1886940).

Almost surely, 2^7540723 is an apocalyptic number.

7540723 is a deficient number, since it is larger than the sum of its proper divisors (7037).

7540723 is a wasteful number, since it uses less digits than its factorization.

7540723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7036.

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

The square root of 7540723 is about 2746.0376909285. The cubic root of 7540723 is about 196.0970208959.

The spelling of 7540723 in words is "seven million, five hundred forty thousand, seven hundred twenty-three".