12891846 has 32 divisors (see below), whose sum is σ = 29039616. Its totient is φ = 3780000.

The previous prime is 12891839. The next prime is 12891869. The reversal of 12891846 is 64819821.

12891846 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 super-3 number, since 3×12891846³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1105 + ... + 5196.

It is an arithmetic number, because the mean of its divisors is an integer number (907488).

Almost surely, 2^12891846 is an apocalyptic number.

12891846 is an abundant number, since it is smaller than the sum of its proper divisors (16147770).

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

12891846 is a wasteful number, since it uses less digits than its factorization.

12891846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6348.

The product of its digits is 27648, while the sum is 39.

The square root of 12891846 is about 3590.5216891143. The cubic root of 12891846 is about 234.4795847555.

The spelling of 12891846 in words is "twelve million, eight hundred ninety-one thousand, eight hundred forty-six".