12620726 has 4 divisors (see below), whose sum is σ = 18931092. Its totient is φ = 6310362.

The previous prime is 12620711. The next prime is 12620789. The reversal of 12620726 is 62702621.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12620695 and 12620704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3155180 + ... + 3155183.

It is an arithmetic number, because the mean of its divisors is an integer number (4732773).

Almost surely, 2^12620726 is an apocalyptic number.

12620726 is a deficient number, since it is larger than the sum of its proper divisors (6310366).

12620726 is an equidigital number, since it uses as much as digits as its factorization.

12620726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6310365.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 12620726 is about 3552.5661147965. The cubic root of 12620726 is about 232.8241964395.

The spelling of 12620726 in words is "twelve million, six hundred twenty thousand, seven hundred twenty-six".