12912894 has 48 divisors (see below), whose sum is σ = 31196880. Its totient is φ = 3836160.

The previous prime is 12912883. The next prime is 12912899. The reversal of 12912894 is 49821921.

12912894 is digitally balanced in base 2, because in such base 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 (12912899) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4704 + ... + 6924.

It is an arithmetic number, because the mean of its divisors is an integer number (649935).

Almost surely, 2^12912894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12912894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15598440).

12912894 is an abundant number, since it is smaller than the sum of its proper divisors (18283986).

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

12912894 is a wasteful number, since it uses less digits than its factorization.

12912894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265 (or 2262 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 12912894 is about 3593.4515441286. The cubic root of 12912894 is about 234.6071238431.

The spelling of 12912894 in words is "twelve million, nine hundred twelve thousand, eight hundred ninety-four".