11636723 has 4 divisors (see below), whose sum is σ = 13299120. Its totient is φ = 9974328.

The previous prime is 11636699. The next prime is 11636741. The reversal of 11636723 is 32763611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32763611 = 37 ⋅885503.

It is not a de Polignac number, because 11636723 - 2⁶ = 11636659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11636783) 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, 831188 + ... + 831201.

It is an arithmetic number, because the mean of its divisors is an integer number (3324780).

Almost surely, 2^11636723 is an apocalyptic number.

11636723 is a deficient number, since it is larger than the sum of its proper divisors (1662397).

11636723 is an equidigital number, since it uses as much as digits as its factorization.

11636723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662396.

The product of its digits is 4536, while the sum is 29.

The square root of 11636723 is about 3411.2641351851. The cubic root of 11636723 is about 226.6088667021.

The spelling of 11636723 in words is "eleven million, six hundred thirty-six thousand, seven hundred twenty-three".