11438723 has 4 divisors (see below), whose sum is σ = 11461968. Its totient is φ = 11415480.

The previous prime is 11438717. The next prime is 11438729. The reversal of 11438723 is 32783411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32783411 = 229 ⋅143159.

It is an interprime number because it is at equal distance from previous prime (11438717) and next prime (11438729).

It is a cyclic number.

It is not a de Polignac number, because 11438723 - 2¹² = 11434627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11438729) 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, 10868 + ... + 11873.

It is an arithmetic number, because the mean of its divisors is an integer number (2865492).

Almost surely, 2^11438723 is an apocalyptic number.

11438723 is a deficient number, since it is larger than the sum of its proper divisors (23245).

11438723 is an equidigital number, since it uses as much as digits as its factorization.

11438723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23244.

The product of its digits is 4032, while the sum is 29.

The square root of 11438723 is about 3382.1181233068. The cubic root of 11438723 is about 225.3162499352.

The spelling of 11438723 in words is "eleven million, four hundred thirty-eight thousand, seven hundred twenty-three".