13758865 has 8 divisors (see below), whose sum is σ = 17481960. Its totient is φ = 10359552.

The previous prime is 13758817. The next prime is 13758893. The reversal of 13758865 is 56885731.

13758865 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 4198401 + 9560464 = 2049^2 + 3092^2 .

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 13758865 - 2⁷ = 13758737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80850 + ... + 81019.

It is an arithmetic number, because the mean of its divisors is an integer number (2185245).

Almost surely, 2^13758865 is an apocalyptic number.

It is an amenable number.

13758865 is a deficient number, since it is larger than the sum of its proper divisors (3723095).

13758865 is a wasteful number, since it uses less digits than its factorization.

13758865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161891.

The product of its digits is 201600, while the sum is 43.

The square root of 13758865 is about 3709.2944072964. The cubic root of 13758865 is about 239.6224677766.

The spelling of 13758865 in words is "thirteen million, seven hundred fifty-eight thousand, eight hundred sixty-five".