13974665 has 8 divisors (see below), whose sum is σ = 17348040. Its totient is φ = 10794112.

The previous prime is 13974661. The next prime is 13974677. The reversal of 13974665 is 56647931.

13974665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2972176 + 11002489 = 1724^2 + 3317^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13974665 - 2² = 13974661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13974661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48044 + ... + 48333.

It is an arithmetic number, because the mean of its divisors is an integer number (2168505).

Almost surely, 2^13974665 is an apocalyptic number.

It is an amenable number.

13974665 is a deficient number, since it is larger than the sum of its proper divisors (3373375).

13974665 is an equidigital number, since it uses as much as digits as its factorization.

13974665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96411.

The product of its digits is 136080, while the sum is 41.

The square root of 13974665 is about 3738.2703219537. The cubic root of 13974665 is about 240.8687554076.

The spelling of 13974665 in words is "thirteen million, nine hundred seventy-four thousand, six hundred sixty-five".