11723573 has 2 divisors, whose sum is σ = 11723574. Its totient is φ = 11723572.

The previous prime is 11723527. The next prime is 11723599. The reversal of 11723573 is 37532711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11336689 + 386884 = 3367^2 + 622^2 .

It is a cyclic number.

It is not a de Polignac number, because 11723573 - 2¹⁶ = 11658037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11723473) 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 as a sum of consecutive naturals, namely, 5861786 + 5861787.

It is an arithmetic number, because the mean of its divisors is an integer number (5861787).

Almost surely, 2^11723573 is an apocalyptic number.

It is an amenable number.

11723573 is a deficient number, since it is larger than the sum of its proper divisors (1).

11723573 is an equidigital number, since it uses as much as digits as its factorization.

11723573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4410, while the sum is 29.

The square root of 11723573 is about 3423.9703561801. The cubic root of 11723573 is about 227.1712306217.

The spelling of 11723573 in words is "eleven million, seven hundred twenty-three thousand, five hundred seventy-three".