13404785 has 16 divisors (see below), whose sum is σ = 17064000. Its totient is φ = 10080576.

The previous prime is 13404763. The next prime is 13404829. The reversal of 13404785 is 58740431.

It is a cyclic number.

It is not a de Polignac number, because 13404785 - 2⁸ = 13404529 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 15 ways as a sum of consecutive naturals, for example, 13682 + ... + 14628.

It is an arithmetic number, because the mean of its divisors is an integer number (1066500).

Almost surely, 2^13404785 is an apocalyptic number.

It is an amenable number.

13404785 is a deficient number, since it is larger than the sum of its proper divisors (3659215).

13404785 is a wasteful number, since it uses less digits than its factorization.

13404785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 13404785 is about 3661.2545664021. The cubic root of 13404785 is about 237.5490425039.

The spelling of 13404785 in words is "thirteen million, four hundred four thousand, seven hundred eighty-five".