13766385 has 8 divisors (see below), whose sum is σ = 22026240. Its totient is φ = 7342064.

The previous prime is 13766381. The next prime is 13766429. The reversal of 13766385 is 58366731.

13766385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13766385 - 2² = 13766381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13766381) 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, 458865 + ... + 458894.

It is an arithmetic number, because the mean of its divisors is an integer number (2753280).

Almost surely, 2^13766385 is an apocalyptic number.

13766385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13766385 is a deficient number, since it is larger than the sum of its proper divisors (8259855).

13766385 is an equidigital number, since it uses as much as digits as its factorization.

13766385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917767.

The product of its digits is 90720, while the sum is 39.

The square root of 13766385 is about 3710.3079387027. The cubic root of 13766385 is about 239.6661155815. Note that the first 3 decimals are identical.

The spelling of 13766385 in words is "thirteen million, seven hundred sixty-six thousand, three hundred eighty-five".