2730523 has 4 divisors (see below), whose sum is σ = 2891160. Its totient is φ = 2569888.

The previous prime is 2730521. The next prime is 2730529. The reversal of 2730523 is 3250372.

It is a happy number.

2730523 is digitally balanced in base 2, 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.

It is a cyclic number.

It is not a de Polignac number, because 2730523 - 2¹ = 2730521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2730494 and 2730503.

It is not an unprimeable number, because it can be changed into a prime (2730521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80293 + ... + 80326.

It is an arithmetic number, because the mean of its divisors is an integer number (722790).

2^2730523 is an apocalyptic number.

2730523 is a deficient number, since it is larger than the sum of its proper divisors (160637).

2730523 is a wasteful number, since it uses less digits than its factorization.

2730523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160636.

The product of its (nonzero) digits is 1260, while the sum is 22.

The square root of 2730523 is about 1652.4294236063. The cubic root of 2730523 is about 139.7704230571.

Adding to 2730523 its reverse (3250372), we get a palindrome (5980895).

The spelling of 2730523 in words is "two million, seven hundred thirty thousand, five hundred twenty-three".