11937823 has 2 divisors, whose sum is σ = 11937824. Its totient is φ = 11937822.

The previous prime is 11937817. The next prime is 11937829. The reversal of 11937823 is 32873911.

11937823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (11937817) and next prime (11937829).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11937823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11937829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5968911 + 5968912.

It is an arithmetic number, because the mean of its divisors is an integer number (5968912).

Almost surely, 2^11937823 is an apocalyptic number.

11937823 is a deficient number, since it is larger than the sum of its proper divisors (1).

11937823 is an equidigital number, since it uses as much as digits as its factorization.

11937823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 34.

The square root of 11937823 is about 3455.1154828746. The cubic root of 11937823 is about 228.5467475025.

The spelling of 11937823 in words is "eleven million, nine hundred thirty-seven thousand, eight hundred twenty-three".