1693386385 has 16 divisors (see below), whose sum is σ = 2121993216. Its totient is φ = 1294843968.

The previous prime is 1693386379. The next prime is 1693386389. The reversal of 1693386385 is 5836833961.

It is a cyclic number.

It is not a de Polignac number, because 1693386385 - 2⁵ = 1693386353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1693386389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175507 + ... + 184903.

It is an arithmetic number, because the mean of its divisors is an integer number (132624576).

Almost surely, 2^1693386385 is an apocalyptic number.

It is an amenable number.

1693386385 is a deficient number, since it is larger than the sum of its proper divisors (428606831).

1693386385 is a wasteful number, since it uses less digits than its factorization.

1693386385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10992.

The product of its digits is 2799360, while the sum is 52.

The square root of 1693386385 is about 41150.7762381222. The cubic root of 1693386385 is about 1191.9334867564.

The spelling of 1693386385 in words is "one billion, six hundred ninety-three million, three hundred eighty-six thousand, three hundred eighty-five".