13648947 has 12 divisors (see below), whose sum is σ = 19706904. Its totient is φ = 8399040.

The previous prime is 13648939. The next prime is 13648963. The reversal of 13648947 is 74984631.

It is not a de Polignac number, because 13648947 - 2³ = 13648939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13648899 and 13648908.

It is not an unprimeable number, because it can be changed into a prime (13648247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12954 + ... + 13967.

It is an arithmetic number, because the mean of its divisors is an integer number (1642242).

Almost surely, 2^13648947 is an apocalyptic number.

13648947 is a deficient number, since it is larger than the sum of its proper divisors (6057957).

13648947 is a wasteful number, since it uses less digits than its factorization.

13648947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26950 (or 26937 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 13648947 is about 3694.4481319948. The cubic root of 13648947 is about 238.9826554408.

The spelling of 13648947 in words is "thirteen million, six hundred forty-eight thousand, nine hundred forty-seven".