13616385 has 8 divisors (see below), whose sum is σ = 21786240. Its totient is φ = 7262064.

The previous prime is 13616357. The next prime is 13616401. The reversal of 13616385 is 58361631.

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

It is not a de Polignac number, because 13616385 - 2⁶ = 13616321 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453865 + ... + 453894.

It is an arithmetic number, because the mean of its divisors is an integer number (2723280).

Almost surely, 2^13616385 is an apocalyptic number.

13616385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13616385 is a deficient number, since it is larger than the sum of its proper divisors (8169855).

13616385 is an equidigital number, since it uses as much as digits as its factorization.

13616385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907767.

The product of its digits is 12960, while the sum is 33.

The square root of 13616385 is about 3690.0386176841. The cubic root of 13616385 is about 238.7924588468.

The spelling of 13616385 in words is "thirteen million, six hundred sixteen thousand, three hundred eighty-five".