12621836 has 12 divisors (see below), whose sum is σ = 22800960. Its totient is φ = 6107280.

The previous prime is 12621823. The next prime is 12621877. The reversal of 12621836 is 63812621.

It is a junction number, because it is equal to n+sod(n) for n = 12621799 and 12621808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50771 + ... + 51018.

It is an arithmetic number, because the mean of its divisors is an integer number (1900080).

Almost surely, 2^12621836 is an apocalyptic number.

It is an amenable number.

12621836 is a deficient number, since it is larger than the sum of its proper divisors (10179124).

12621836 is a wasteful number, since it uses less digits than its factorization.

12621836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101824 (or 101822 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 12621836 is about 3552.7223364626. The cubic root of 12621836 is about 232.8310219127.

The spelling of 12621836 in words is "twelve million, six hundred twenty-one thousand, eight hundred thirty-six".