12820606 has 4 divisors (see below), whose sum is σ = 19230912. Its totient is φ = 6410302.

The previous prime is 12820603. The next prime is 12820631. The reversal of 12820606 is 60602821.

12820606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60602821 = 593 ⋅102197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12820603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3205150 + ... + 3205153.

It is an arithmetic number, because the mean of its divisors is an integer number (4807728).

Almost surely, 2^12820606 is an apocalyptic number.

12820606 is a deficient number, since it is larger than the sum of its proper divisors (6410306).

12820606 is an equidigital number, since it uses as much as digits as its factorization.

12820606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6410305.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 12820606 is about 3580.5873819808. The cubic root of 12820606 is about 234.0468774031.

The spelling of 12820606 in words is "twelve million, eight hundred twenty thousand, six hundred six".