12811662 has 32 divisors (see below), whose sum is σ = 29971200. Its totient is φ = 4045464.

The previous prime is 12811661. The next prime is 12811679. The reversal of 12811662 is 26611821.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12811661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5218 + ... + 7269.

It is an arithmetic number, because the mean of its divisors is an integer number (936600).

Almost surely, 2^12811662 is an apocalyptic number.

12811662 is an abundant number, since it is smaller than the sum of its proper divisors (17159538).

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

12811662 is a wasteful number, since it uses less digits than its factorization.

12811662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12517 (or 12511 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 12811662 is about 3579.3382069874. The cubic root of 12811662 is about 233.9924389404.

The spelling of 12811662 in words is "twelve million, eight hundred eleven thousand, six hundred sixty-two".