11894013 has 32 divisors (see below), whose sum is σ = 18662400. Its totient is φ = 7471728.

The previous prime is 11894009. The next prime is 11894017. The reversal of 11894013 is 31049811.

It is an interprime number because it is at equal distance from previous prime (11894009) and next prime (11894017).

It is not a de Polignac number, because 11894013 - 2² = 11894009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11894017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66358 + ... + 66536.

It is an arithmetic number, because the mean of its divisors is an integer number (583200).

Almost surely, 2^11894013 is an apocalyptic number.

It is an amenable number.

11894013 is a deficient number, since it is larger than the sum of its proper divisors (6768387).

11894013 is a wasteful number, since it uses less digits than its factorization.

11894013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 11894013 is about 3448.7697806609. The cubic root of 11894013 is about 228.2668275002.

The spelling of 11894013 in words is "eleven million, eight hundred ninety-four thousand, thirteen".