693385385 has 32 divisors (see below), whose sum is σ = 1040891904. Its totient is φ = 430776000.

The previous prime is 693385351. The next prime is 693385397. The reversal of 693385385 is 583583396.

It is not a de Polignac number, because 693385385 - 2⁶ = 693385321 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 (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116840 + ... + 122630.

It is an arithmetic number, because the mean of its divisors is an integer number (32527872).

Almost surely, 2^693385385 is an apocalyptic number.

It is an amenable number.

693385385 is a deficient number, since it is larger than the sum of its proper divisors (347506519).

693385385 is a wasteful number, since it uses less digits than its factorization.

693385385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6125.

The product of its digits is 2332800, while the sum is 50.

The square root of 693385385 is about 26332.2119275992. The cubic root of 693385385 is about 885.0984111786.

The spelling of 693385385 in words is "six hundred ninety-three million, three hundred eighty-five thousand, three hundred eighty-five".