668303867 has 8 divisors (see below), whose sum is σ = 833210112. Its totient is φ = 520756200.

The previous prime is 668303849. The next prime is 668303957. The reversal of 668303867 is 768303866.

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 668303867 - 2²⁶ = 601195003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (668303827) 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, 4339559 + ... + 4339712.

It is an arithmetic number, because the mean of its divisors is an integer number (104151264).

Almost surely, 2^668303867 is an apocalyptic number.

668303867 is a deficient number, since it is larger than the sum of its proper divisors (164906245).

668303867 is a wasteful number, since it uses less digits than its factorization.

668303867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8679289.

The product of its (nonzero) digits is 870912, while the sum is 47.

The square root of 668303867 is about 25851.5737818803. The cubic root of 668303867 is about 874.2949932560.

Subtracting 668303867 from its reverse (768303866), we obtain a palindrome (99999999).

The spelling of 668303867 in words is "six hundred sixty-eight million, three hundred three thousand, eight hundred sixty-seven".