668793327 has 8 divisors (see below), whose sum is σ = 893499264. Its totient is φ = 444974808.

The previous prime is 668793313. The next prime is 668793329. The reversal of 668793327 is 723397866.

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

It is not a de Polignac number, because 668793327 - 2⁸ = 668793071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 668793327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668793329) 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, 220093 + ... + 223110.

It is an arithmetic number, because the mean of its divisors is an integer number (111687408).

Almost surely, 2^668793327 is an apocalyptic number.

668793327 is a deficient number, since it is larger than the sum of its proper divisors (224705937).

668793327 is a wasteful number, since it uses less digits than its factorization.

668793327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443709.

The product of its digits is 2286144, while the sum is 51.

The square root of 668793327 is about 25861.0387842407. The cubic root of 668793327 is about 874.5083832121.

The spelling of 668793327 in words is "six hundred sixty-eight million, seven hundred ninety-three thousand, three hundred twenty-seven".