13800785 has 8 divisors (see below), whose sum is σ = 16747560. Its totient is φ = 10916224.

The previous prime is 13800757. The next prime is 13800791. The reversal of 13800785 is 58700831.

It can be written as a sum of positive squares in 4 ways, for example, as 638401 + 13162384 = 799^2 + 3628^2 .

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 13800785 - 2¹⁰ = 13799761 is a prime.

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, 15062 + ... + 15951.

It is an arithmetic number, because the mean of its divisors is an integer number (2093445).

Almost surely, 2^13800785 is an apocalyptic number.

It is an amenable number.

13800785 is a deficient number, since it is larger than the sum of its proper divisors (2946775).

13800785 is an equidigital number, since it uses as much as digits as its factorization.

13800785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31107.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 13800785 is about 3714.9407801471. The cubic root of 13800785 is about 239.8655786613.

The spelling of 13800785 in words is "thirteen million, eight hundred thousand, seven hundred eighty-five".