13620626 has 4 divisors (see below), whose sum is σ = 20430942. Its totient is φ = 6810312.

The previous prime is 13620619. The next prime is 13620641. The reversal of 13620626 is 62602631.

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

It can be written as a sum of positive squares in only one way, i.e., 7295401 + 6325225 = 2701^2 + 2515^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13620595 and 13620604.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3405155 + ... + 3405158.

Almost surely, 2^13620626 is an apocalyptic number.

13620626 is a deficient number, since it is larger than the sum of its proper divisors (6810316).

13620626 is an equidigital number, since it uses as much as digits as its factorization.

13620626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6810315.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 13620626 is about 3690.6132281777. The cubic root of 13620626 is about 238.8172479445.

The spelling of 13620626 in words is "thirteen million, six hundred twenty thousand, six hundred twenty-six".