668673335 has 8 divisors (see below), whose sum is σ = 875354256. Its totient is φ = 486307840.

The previous prime is 668673311. The next prime is 668673337. The reversal of 668673335 is 533376866.

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

It is not a de Polignac number, because 668673335 - 2⁸ = 668673079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 668673335.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668673337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6078794 + ... + 6078903.

It is an arithmetic number, because the mean of its divisors is an integer number (109419282).

Almost surely, 2^668673335 is an apocalyptic number.

668673335 is a deficient number, since it is larger than the sum of its proper divisors (206680921).

668673335 is a wasteful number, since it uses less digits than its factorization.

668673335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12157713.

The product of its digits is 1632960, while the sum is 47.

The square root of 668673335 is about 25858.7187424281. The cubic root of 668673335 is about 874.4560799160.

The spelling of 668673335 in words is "six hundred sixty-eight million, six hundred seventy-three thousand, three hundred thirty-five".