13847697 has 6 divisors (see below), whose sum is σ = 20002242. Its totient is φ = 9231792.

The previous prime is 13847683. The next prime is 13847711. The reversal of 13847697 is 79674831.

13847697 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13847683) and next prime (13847711).

It can be written as a sum of positive squares in only one way, i.e., 13771521 + 76176 = 3711^2 + 276^2 .

It is not a de Polignac number, because 13847697 - 2⁷ = 13847569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13847797) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 769308 + ... + 769325.

It is an arithmetic number, because the mean of its divisors is an integer number (3333707).

Almost surely, 2^13847697 is an apocalyptic number.

It is an amenable number.

13847697 is a deficient number, since it is larger than the sum of its proper divisors (6154545).

13847697 is a wasteful number, since it uses less digits than its factorization.

13847697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538639 (or 1538636 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 13847697 is about 3721.2493869667. The cubic root of 13847697 is about 240.1370571324.

The spelling of 13847697 in words is "thirteen million, eight hundred forty-seven thousand, six hundred ninety-seven".