11997894 has 16 divisors (see below), whose sum is σ = 24030000. Its totient is φ = 3993600.

The previous prime is 11997893. The next prime is 11997901. The reversal of 11997894 is 49879911.

11997894 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11997893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6694 + ... + 8294.

It is an arithmetic number, because the mean of its divisors is an integer number (1501875).

Almost surely, 2^11997894 is an apocalyptic number.

11997894 is an abundant number, since it is smaller than the sum of its proper divisors (12032106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11997894 is a wasteful number, since it uses less digits than its factorization.

11997894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2855.

The product of its digits is 163296, while the sum is 48.

The square root of 11997894 is about 3463.7976268830. The cubic root of 11997894 is about 228.9294545705.

The spelling of 11997894 in words is "eleven million, nine hundred ninety-seven thousand, eight hundred ninety-four".