11811908 has 6 divisors (see below), whose sum is σ = 20670846. Its totient is φ = 5905952.

The previous prime is 11811887. The next prime is 11811913. The reversal of 11811908 is 80911811.

It can be written as a sum of positive squares in only one way, i.e., 6512704 + 5299204 = 2552^2 + 2302^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1476485 + ... + 1476492.

It is an arithmetic number, because the mean of its divisors is an integer number (3445141).

Almost surely, 2^11811908 is an apocalyptic number.

It is an amenable number.

11811908 is a deficient number, since it is larger than the sum of its proper divisors (8858938).

11811908 is a wasteful number, since it uses less digits than its factorization.

11811908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2952981 (or 2952979 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 29.

The square root of 11811908 is about 3436.8456468105. The cubic root of 11811908 is about 227.7403682543.

The spelling of 11811908 in words is "eleven million, eight hundred eleven thousand, nine hundred eight".