646082 has 8 divisors (see below), whose sum is σ = 974352. Its totient is φ = 321300.

The previous prime is 646073. The next prime is 646099. The reversal of 646082 is 280646.

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

It is an unprimeable number.

646082 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 in 3 ways as a sum of consecutive naturals, for example, 344 + ... + 1187.

It is an arithmetic number, because the mean of its divisors is an integer number (121794).

2⁶⁴⁶⁰⁸² is an apocalyptic number.

646082 is a deficient number, since it is larger than the sum of its proper divisors (328270).

646082 is a wasteful number, since it uses less digits than its factorization.

646082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 646082 is about 803.7922617194. The cubic root of 646082 is about 86.4495122305.

The spelling of 646082 in words is "six hundred forty-six thousand, eighty-two".