11923787 has 2 divisors, whose sum is σ = 11923788. Its totient is φ = 11923786.

The previous prime is 11923763. The next prime is 11923823. The reversal of 11923787 is 78732911.

11923787 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (78732911) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11923787 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11923787.

It is not a weakly prime, because it can be changed into another prime (11923687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5961893 + 5961894.

It is an arithmetic number, because the mean of its divisors is an integer number (5961894).

Almost surely, 2^11923787 is an apocalyptic number.

11923787 is a deficient number, since it is larger than the sum of its proper divisors (1).

11923787 is an equidigital number, since it uses as much as digits as its factorization.

11923787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 38.

The square root of 11923787 is about 3453.0836943231. The cubic root of 11923787 is about 228.4571404275.

The spelling of 11923787 in words is "eleven million, nine hundred twenty-three thousand, seven hundred eighty-seven".