393500085 has 16 divisors (see below), whose sum is σ = 686836800. Its totient is φ = 190787840.

The previous prime is 393500059. The next prime is 393500099. The reversal of 393500085 is 580005393.

It is not a de Polignac number, because 393500085 - 2⁵ = 393500053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1192260 + ... + 1192589.

It is an arithmetic number, because the mean of its divisors is an integer number (42927300).

Almost surely, 2^393500085 is an apocalyptic number.

It is an amenable number.

393500085 is a deficient number, since it is larger than the sum of its proper divisors (293336715).

393500085 is a wasteful number, since it uses less digits than its factorization.

393500085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384868.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 393500085 is about 19836.8365673562. The cubic root of 393500085 is about 732.7935029635.

The spelling of 393500085 in words is "three hundred ninety-three million, five hundred thousand, eighty-five".