13648937 has 4 divisors (see below), whose sum is σ = 14119620. Its totient is φ = 13178256.

The previous prime is 13648919. The next prime is 13648939. The reversal of 13648937 is 73984631.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5331481 + 8317456 = 2309^2 + 2884^2 .

It is a cyclic number.

It is not a de Polignac number, because 13648937 - 2⁸ = 13648681 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13648894 and 13648903.

It is not an unprimeable number, because it can be changed into a prime (13648939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235298 + ... + 235355.

It is an arithmetic number, because the mean of its divisors is an integer number (3529905).

Almost surely, 2^13648937 is an apocalyptic number.

It is an amenable number.

13648937 is a deficient number, since it is larger than the sum of its proper divisors (470683).

13648937 is an equidigital number, since it uses as much as digits as its factorization.

13648937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470682.

The product of its digits is 108864, while the sum is 41.

The square root of 13648937 is about 3694.4467786125. The cubic root of 13648937 is about 238.9825970767.

It can be divided in two parts, 1364 and 8937, that added together give a palindrome (10301).

The spelling of 13648937 in words is "thirteen million, six hundred forty-eight thousand, nine hundred thirty-seven".