12621894 has 16 divisors (see below), whose sum is σ = 26341632. Its totient is φ = 4024328.

The previous prime is 12621887. The next prime is 12621899. The reversal of 12621894 is 49812621.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12621899) 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, 45594 + ... + 45869.

It is an arithmetic number, because the mean of its divisors is an integer number (1646352).

Almost surely, 2^12621894 is an apocalyptic number.

12621894 is an abundant number, since it is smaller than the sum of its proper divisors (13719738).

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

12621894 is a wasteful number, since it uses less digits than its factorization.

12621894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91491.

The product of its digits is 6912, while the sum is 33.

The square root of 12621894 is about 3552.7304992076. The cubic root of 12621894 is about 232.8313785481.

The spelling of 12621894 in words is "twelve million, six hundred twenty-one thousand, eight hundred ninety-four".