13407785 has 4 divisors (see below), whose sum is σ = 16089348. Its totient is φ = 10726224.

The previous prime is 13407731. The next prime is 13407791. The reversal of 13407785 is 58770431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58770431 = 59 ⋅996109.

It can be written as a sum of positive squares in 2 ways, for example, as 3193369 + 10214416 = 1787^2 + 3196^2 .

It is a cyclic number.

It is not a de Polignac number, because 13407785 - 2¹⁴ = 13391401 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 1340774 + ... + 1340783.

It is an arithmetic number, because the mean of its divisors is an integer number (4022337).

Almost surely, 2^13407785 is an apocalyptic number.

It is an amenable number.

13407785 is a deficient number, since it is larger than the sum of its proper divisors (2681563).

13407785 is an equidigital number, since it uses as much as digits as its factorization.

13407785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2681562.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 13407785 is about 3661.6642391131. The cubic root of 13407785 is about 237.5667623944.

The spelling of 13407785 in words is "thirteen million, four hundred seven thousand, seven hundred eighty-five".