12620833 has 4 divisors (see below), whose sum is σ = 12628528. Its totient is φ = 12613140.

The previous prime is 12620831. The next prime is 12620843. The reversal of 12620833 is 33802621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12620833 - 2¹ = 12620831 is a prime.

It is a super-2 number, since 2×12620833² = 318570851227778, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12620798 and 12620807.

It is not an unprimeable number, because it can be changed into a prime (12620831) by changing a digit.

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, 291 + ... + 5032.

It is an arithmetic number, because the mean of its divisors is an integer number (3157132).

Almost surely, 2^12620833 is an apocalyptic number.

It is an amenable number.

12620833 is a deficient number, since it is larger than the sum of its proper divisors (7695).

12620833 is an equidigital number, since it uses as much as digits as its factorization.

12620833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7694.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 12620833 is about 3552.5811743013. The cubic root of 12620833 is about 232.8248544080.

The spelling of 12620833 in words is "twelve million, six hundred twenty thousand, eight hundred thirty-three".