668482 has 8 divisors (see below), whose sum is σ = 1015056. Its totient is φ = 330132.

The previous prime is 668471. The next prime is 668509. The reversal of 668482 is 284866.

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

It is a plaindrome in base 14.

It is an unprimeable number.

668482 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1848 + ... + 2179.

It is an arithmetic number, because the mean of its divisors is an integer number (126882).

2⁶⁶⁸⁴⁸² is an apocalyptic number.

668482 is a deficient number, since it is larger than the sum of its proper divisors (346574).

668482 is a wasteful number, since it uses less digits than its factorization.

668482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4112.

The product of its digits is 18432, while the sum is 34.

The square root of 668482 is about 817.6074852886. The cubic root of 668482 is about 87.4372665985.

The spelling of 668482 in words is "six hundred sixty-eight thousand, four hundred eighty-two".