11391008 has 12 divisors (see below), whose sum is σ = 22426110. Its totient is φ = 5695488.

The previous prime is 11391007. The next prime is 11391019. The reversal of 11391008 is 80019311.

It can be written as a sum of positive squares in only one way, i.e., 10163344 + 1227664 = 3188^2 + 1108^2 .

It is not an unprimeable number, because it can be changed into a prime (11391007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177953 + ... + 178016.

Almost surely, 2^11391008 is an apocalyptic number.

It is an amenable number.

11391008 is a deficient number, since it is larger than the sum of its proper divisors (11035102).

11391008 is an equidigital number, since it uses as much as digits as its factorization.

11391008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355979 (or 355971 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 11391008 is about 3375.0567402638. The cubic root of 11391008 is about 225.0025217824.

The spelling of 11391008 in words is "eleven million, three hundred ninety-one thousand, eight".