11799949 has 4 divisors (see below), whose sum is σ = 13485664. Its totient is φ = 10114236.

The previous prime is 11799919. The next prime is 11799979. The reversal of 11799949 is 94999711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94999711 = 8263 ⋅11497.

It is an interprime number because it is at equal distance from previous prime (11799919) and next prime (11799979).

It is a cyclic number.

It is not a de Polignac number, because 11799949 - 2¹¹ = 11797901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11799919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 842847 + ... + 842860.

It is an arithmetic number, because the mean of its divisors is an integer number (3371416).

Almost surely, 2^11799949 is an apocalyptic number.

It is an amenable number.

11799949 is a deficient number, since it is larger than the sum of its proper divisors (1685715).

11799949 is an equidigital number, since it uses as much as digits as its factorization.

11799949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685714.

The product of its digits is 183708, while the sum is 49.

The square root of 11799949 is about 3435.1053841185. The cubic root of 11799949 is about 227.6634835055.

The spelling of 11799949 in words is "eleven million, seven hundred ninety-nine thousand, nine hundred forty-nine".