668335 has 8 divisors (see below), whose sum is σ = 806400. Its totient is φ = 531744.

The previous prime is 668303. The next prime is 668347. The reversal of 668335 is 533866.

668335 = T₆₆₆ + T₆₆₇ + T₆₆₈.

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

It is a cyclic number.

It is not a de Polignac number, because 668335 - 2⁵ = 668303 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 668297 and 668306.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 1554 + ... + 1936.

It is an arithmetic number, because the mean of its divisors is an integer number (100800).

2⁶⁶⁸³³⁵ is an apocalyptic number.

668335 is the 668-th centered triangular number.

668335 is a deficient number, since it is larger than the sum of its proper divisors (138065).

668335 is a wasteful number, since it uses less digits than its factorization.

668335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737.

The product of its digits is 12960, while the sum is 31.

The square root of 668335 is about 817.5175839087. The cubic root of 668335 is about 87.4308569417.

The spelling of 668335 in words is "six hundred sixty-eight thousand, three hundred thirty-five".