11908949 has 4 divisors (see below), whose sum is σ = 12825036. Its totient is φ = 10992864.

The previous prime is 11908933. The next prime is 11908951. The reversal of 11908949 is 94980911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94980911 = 8963 ⋅10597.

It can be written as a sum of positive squares in 2 ways, for example, as 3928324 + 7980625 = 1982^2 + 2825^2 .

It is a cyclic number.

It is not a de Polignac number, because 11908949 - 2⁴ = 11908933 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 (11908349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458024 + ... + 458049.

It is an arithmetic number, because the mean of its divisors is an integer number (3206259).

Almost surely, 2^11908949 is an apocalyptic number.

It is an amenable number.

11908949 is a deficient number, since it is larger than the sum of its proper divisors (916087).

11908949 is an equidigital number, since it uses as much as digits as its factorization.

11908949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916086.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 11908949 is about 3450.9345111143. The cubic root of 11908949 is about 228.3623368181.

The spelling of 11908949 in words is "eleven million, nine hundred eight thousand, nine hundred forty-nine".