13678975 has 12 divisors (see below), whose sum is σ = 17007840. Its totient is φ = 10913600.

The previous prime is 13678969. The next prime is 13678979. The reversal of 13678975 is 57987631.

It is a de Polignac number, because none of the positive numbers 2^k-13678975 is a prime.

It is a super-2 number, since 2×13678975² = 374228714101250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13678979) 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, 17595 + ... + 18355.

It is an arithmetic number, because the mean of its divisors is an integer number (1417320).

Almost surely, 2^13678975 is an apocalyptic number.

13678975 is a deficient number, since it is larger than the sum of its proper divisors (3328865).

13678975 is an equidigital number, since it uses as much as digits as its factorization.

13678975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490 (or 1485 counting only the distinct ones).

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

The square root of 13678975 is about 3698.5098350552. The cubic root of 13678975 is about 239.1577828705.

The spelling of 13678975 in words is "thirteen million, six hundred seventy-eight thousand, nine hundred seventy-five".