13973565 has 8 divisors (see below), whose sum is σ = 22357728. Its totient is φ = 7452560.

The previous prime is 13973551. The next prime is 13973593. The reversal of 13973565 is 56537931.

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

It is not a de Polignac number, because 13973565 - 2¹² = 13969469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465771 + ... + 465800.

It is an arithmetic number, because the mean of its divisors is an integer number (2794716).

Almost surely, 2^13973565 is an apocalyptic number.

13973565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13973565 is a deficient number, since it is larger than the sum of its proper divisors (8384163).

13973565 is an equidigital number, since it uses as much as digits as its factorization.

13973565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931579.

The product of its digits is 85050, while the sum is 39.

The square root of 13973565 is about 3738.1231921915. The cubic root of 13973565 is about 240.8624353376.

The spelling of 13973565 in words is "thirteen million, nine hundred seventy-three thousand, five hundred sixty-five".