385284693 has 16 divisors (see below), whose sum is σ = 517045760. Its totient is φ = 255196656.

The previous prime is 385284677. The next prime is 385284701. The reversal of 385284693 is 396482583.

It is not a de Polignac number, because 385284693 - 2⁴ = 385284677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385284673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448098 + ... + 448956.

It is an arithmetic number, because the mean of its divisors is an integer number (32315360).

Almost surely, 2^385284693 is an apocalyptic number.

It is an amenable number.

385284693 is a deficient number, since it is larger than the sum of its proper divisors (131761067).

385284693 is a wasteful number, since it uses less digits than its factorization.

385284693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656.

The product of its digits is 1244160, while the sum is 48.

The square root of 385284693 is about 19628.6701791028. The cubic root of 385284693 is about 727.6579050492.

The spelling of 385284693 in words is "three hundred eighty-five million, two hundred eighty-four thousand, six hundred ninety-three".