13975694 has 4 divisors (see below), whose sum is σ = 20963544. Its totient is φ = 6987846.

The previous prime is 13975693. The next prime is 13975721. The reversal of 13975694 is 49657931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49657931 = 859 ⋅57809.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13975691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3493922 + ... + 3493925.

It is an arithmetic number, because the mean of its divisors is an integer number (5240886).

Almost surely, 2^13975694 is an apocalyptic number.

13975694 is a deficient number, since it is larger than the sum of its proper divisors (6987850).

13975694 is an equidigital number, since it uses as much as digits as its factorization.

13975694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6987849.

The product of its digits is 204120, while the sum is 44.

The square root of 13975694 is about 3738.4079499166. The cubic root of 13975694 is about 240.8746672456.

The spelling of 13975694 in words is "thirteen million, nine hundred seventy-five thousand, six hundred ninety-four".