13968775 has 12 divisors (see below), whose sum is σ = 17389512. Its totient is φ = 11131040.

The previous prime is 13968767. The next prime is 13968809. The reversal of 13968775 is 57786931.

13968775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13968775 - 2³ = 13968767 is a prime.

It is a Duffinian number.

Its product of digits (317520) is a multiple of the sum of its prime divisors (2205).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6372 + ... + 8278.

It is an arithmetic number, because the mean of its divisors is an integer number (1449126).

Almost surely, 2^13968775 is an apocalyptic number.

13968775 is a deficient number, since it is larger than the sum of its proper divisors (3420737).

13968775 is a wasteful number, since it uses less digits than its factorization.

13968775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210 (or 2205 counting only the distinct ones).

The product of its digits is 317520, while the sum is 46.

The square root of 13968775 is about 3737.4824414303. The cubic root of 13968775 is about 240.8349104380.

The spelling of 13968775 in words is "thirteen million, nine hundred sixty-eight thousand, seven hundred seventy-five".