13968971 has 4 divisors (see below), whose sum is σ = 14704200. Its totient is φ = 13233744.

The previous prime is 13968961. The next prime is 13968989. The reversal of 13968971 is 17986931.

13968971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17986931 = 29 ⋅620239.

It is a cyclic number.

It is not a de Polignac number, because 13968971 - 2⁶ = 13968907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13968961) 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, 367586 + ... + 367623.

It is an arithmetic number, because the mean of its divisors is an integer number (3676050).

Almost surely, 2^13968971 is an apocalyptic number.

13968971 is a deficient number, since it is larger than the sum of its proper divisors (735229).

13968971 is an equidigital number, since it uses as much as digits as its factorization.

13968971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735228.

The product of its digits is 81648, while the sum is 44.

The square root of 13968971 is about 3737.5086621973. The cubic root of 13968971 is about 240.8360368413.

The spelling of 13968971 in words is "thirteen million, nine hundred sixty-eight thousand, nine hundred seventy-one".