11894971 has 4 divisors (see below), whose sum is σ = 12976344. Its totient is φ = 10813600.

The previous prime is 11894941. The next prime is 11894977. The reversal of 11894971 is 17949811.

11894971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11894971 - 2¹³ = 11886779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11894977) 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, 540670 + ... + 540691.

It is an arithmetic number, because the mean of its divisors is an integer number (3244086).

Almost surely, 2^11894971 is an apocalyptic number.

11894971 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11894971 is a deficient number, since it is larger than the sum of its proper divisors (1081373).

11894971 is a wasteful number, since it uses less digits than its factorization.

11894971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081372.

The product of its digits is 18144, while the sum is 40.

The square root of 11894971 is about 3448.9086679702. The cubic root of 11894971 is about 228.2729558986.

The spelling of 11894971 in words is "eleven million, eight hundred ninety-four thousand, nine hundred seventy-one".