11853979 has 2 divisors, whose sum is σ = 11853980. Its totient is φ = 11853978.

The previous prime is 11853943. The next prime is 11853991. The reversal of 11853979 is 97935811.

11853979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11853979 is a prime.

It is not a weakly prime, because it can be changed into another prime (11853679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5926989 + 5926990.

It is an arithmetic number, because the mean of its divisors is an integer number (5926990).

Almost surely, 2^11853979 is an apocalyptic number.

11853979 is a deficient number, since it is larger than the sum of its proper divisors (1).

11853979 is an equidigital number, since it uses as much as digits as its factorization.

11853979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 43.

The square root of 11853979 is about 3442.9607897854. The cubic root of 11853979 is about 228.0104322199.

The spelling of 11853979 in words is "eleven million, eight hundred fifty-three thousand, nine hundred seventy-nine".