393682 has 8 divisors (see below), whose sum is σ = 605052. Its totient is φ = 192000.

The previous prime is 393677. The next prime is 393683. The reversal of 393682 is 286393.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 370881 + 22801 = 609^2 + 151^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2319 + ... + 2482.

2³⁹³⁶⁸² is an apocalyptic number.

393682 is a deficient number, since it is larger than the sum of its proper divisors (211370).

393682 is a wasteful number, since it uses less digits than its factorization.

393682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4844.

The product of its digits is 7776, while the sum is 31.

The square root of 393682 is about 627.4408338640. The cubic root of 393682 is about 73.2906408990.

It can be divided in two parts, 39 and 3682, that added together give a square (3721 = 61²).

The spelling of 393682 in words is "three hundred ninety-three thousand, six hundred eighty-two".