11893005 has 12 divisors (see below), whose sum is σ = 20614620. Its totient is φ = 6342912.

The previous prime is 11892989. The next prime is 11893009. The reversal of 11893005 is 50039811.

It can be written as a sum of positive squares in 2 ways, for example, as 1258884 + 10634121 = 1122^2 + 3261^2 .

It is not a de Polignac number, because 11893005 - 2⁴ = 11892989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11893005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11893009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132100 + ... + 132189.

It is an arithmetic number, because the mean of its divisors is an integer number (1717885).

Almost surely, 2^11893005 is an apocalyptic number.

11893005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11893005 is a deficient number, since it is larger than the sum of its proper divisors (8721615).

11893005 is a wasteful number, since it uses less digits than its factorization.

11893005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264300 (or 264297 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 11893005 is about 3448.6236384970. The cubic root of 11893005 is about 228.2603788928.

The spelling of 11893005 in words is "eleven million, eight hundred ninety-three thousand, five".