13649326 has 4 divisors (see below), whose sum is σ = 20473992. Its totient is φ = 6824662.

The previous prime is 13649303. The next prime is 13649341. The reversal of 13649326 is 62394631.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 13649291 and 13649300.

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, 3412330 + ... + 3412333.

It is an arithmetic number, because the mean of its divisors is an integer number (5118498).

Almost surely, 2^13649326 is an apocalyptic number.

13649326 is a deficient number, since it is larger than the sum of its proper divisors (6824666).

13649326 is an equidigital number, since it uses as much as digits as its factorization.

13649326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6824665.

The product of its digits is 23328, while the sum is 34.

The square root of 13649326 is about 3694.4994248206. The cubic root of 13649326 is about 238.9848674207.

The spelling of 13649326 in words is "thirteen million, six hundred forty-nine thousand, three hundred twenty-six".