11659723 has 4 divisors (see below), whose sum is σ = 11850928. Its totient is φ = 11468520.

The previous prime is 11659721. The next prime is 11659727. The reversal of 11659723 is 32795611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32795611 = 683 ⋅48017.

It is a cyclic number.

It is not a de Polignac number, because 11659723 - 2¹ = 11659721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11659721) 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, 95511 + ... + 95632.

It is an arithmetic number, because the mean of its divisors is an integer number (2962732).

Almost surely, 2^11659723 is an apocalyptic number.

11659723 is a deficient number, since it is larger than the sum of its proper divisors (191205).

11659723 is an equidigital number, since it uses as much as digits as its factorization.

11659723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191204.

The product of its digits is 11340, while the sum is 34.

The square root of 11659723 is about 3414.6336553136. The cubic root of 11659723 is about 226.7580660330.

The spelling of 11659723 in words is "eleven million, six hundred fifty-nine thousand, seven hundred twenty-three".