11723899 has 4 divisors (see below), whose sum is σ = 12789720. Its totient is φ = 10658080.

The previous prime is 11723891. The next prime is 11723903. The reversal of 11723899 is 99832711.

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 11723899 - 2³ = 11723891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11723891) 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, 532894 + ... + 532915.

It is an arithmetic number, because the mean of its divisors is an integer number (3197430).

Almost surely, 2^11723899 is an apocalyptic number.

11723899 is a deficient number, since it is larger than the sum of its proper divisors (1065821).

11723899 is a wasteful number, since it uses less digits than its factorization.

11723899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065820.

The product of its digits is 27216, while the sum is 40.

The square root of 11723899 is about 3424.0179614015. The cubic root of 11723899 is about 227.1733362691.

The spelling of 11723899 in words is "eleven million, seven hundred twenty-three thousand, eight hundred ninety-nine".