13648943 has 16 divisors (see below), whose sum is σ = 18019584. Its totient is φ = 10008960.

The previous prime is 13648939. The next prime is 13648963. The reversal of 13648943 is 34984631.

It is a cyclic number.

It is not a de Polignac number, because 13648943 - 2² = 13648939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13648897 and 13648906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13648963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3905 + ... + 6522.

It is an arithmetic number, because the mean of its divisors is an integer number (1126224).

Almost surely, 2^13648943 is an apocalyptic number.

13648943 is a deficient number, since it is larger than the sum of its proper divisors (4370641).

13648943 is a wasteful number, since it uses less digits than its factorization.

13648943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10462.

The product of its digits is 62208, while the sum is 38.

The square root of 13648943 is about 3694.4475906419. The cubic root of 13648943 is about 238.9826320952.

The spelling of 13648943 in words is "thirteen million, six hundred forty-eight thousand, nine hundred forty-three".