393485 has 4 divisors (see below), whose sum is σ = 472188. Its totient is φ = 314784.

The previous prime is 393479. The next prime is 393487. The reversal of 393485 is 584393.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64009 + 329476 = 253^2 + 574^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-393485 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39344 + ... + 39353.

It is an arithmetic number, because the mean of its divisors is an integer number (118047).

393485 is a Friedman number, since it can be written as 5*((3^9-8)*4-3), using all its digits and the basic arithmetic operations.

2³⁹³⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

393485 is a deficient number, since it is larger than the sum of its proper divisors (78703).

393485 is an equidigital number, since it uses as much as digits as its factorization.

393485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78702.

The product of its digits is 12960, while the sum is 32.

The square root of 393485 is about 627.2838273063. The cubic root of 393485 is about 73.2784138856.

It can be divided in two parts, 393 and 485, that added together give a palindrome (878).

The spelling of 393485 in words is "three hundred ninety-three thousand, four hundred eighty-five".