390682 has 4 divisors (see below), whose sum is σ = 586026. Its totient is φ = 195340.

The previous prime is 390673. The next prime is 390703. The reversal of 390682 is 286093.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 286093 = 17 ⋅16829.

It can be written as a sum of positive squares in only one way, i.e., 385641 + 5041 = 621^2 + 71^2 .

It is a super-3 number, since 3×390682³ = 178892223336883704, which contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 390682.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97669 + ... + 97672.

2³⁹⁰⁶⁸² is an apocalyptic number.

390682 is a deficient number, since it is larger than the sum of its proper divisors (195344).

390682 is a wasteful number, since it uses less digits than its factorization.

390682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195343.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 390682 is about 625.0455983366. The cubic root of 390682 is about 73.1039988880.

The spelling of 390682 in words is "three hundred ninety thousand, six hundred eighty-two".