11868949 has 2 divisors, whose sum is σ = 11868950. Its totient is φ = 11868948.

The previous prime is 11868937. The next prime is 11868959. The reversal of 11868949 is 94986811.

11868949 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 can be written as a sum of positive squares in only one way, i.e., 10562500 + 1306449 = 3250^2 + 1143^2 .

It is an emirp because it is prime and its reverse (94986811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11868949 - 2⁷ = 11868821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11868899 and 11868908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11868929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5934474 + 5934475.

It is an arithmetic number, because the mean of its divisors is an integer number (5934475).

Almost surely, 2^11868949 is an apocalyptic number.

It is an amenable number.

11868949 is a deficient number, since it is larger than the sum of its proper divisors (1).

11868949 is an equidigital number, since it uses as much as digits as its factorization.

11868949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 46.

The square root of 11868949 is about 3445.1341047919. The cubic root of 11868949 is about 228.1063741345.

The spelling of 11868949 in words is "eleven million, eight hundred sixty-eight thousand, nine hundred forty-nine".