668227467 has 4 divisors (see below), whose sum is σ = 890969960. Its totient is φ = 445484976.

The previous prime is 668227459. The next prime is 668227481. The reversal of 668227467 is 764722866.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 668227467 - 2³ = 668227459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (668227447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111371242 + ... + 111371247.

It is an arithmetic number, because the mean of its divisors is an integer number (222742490).

Almost surely, 2^668227467 is an apocalyptic number.

668227467 is a deficient number, since it is larger than the sum of its proper divisors (222742493).

668227467 is a wasteful number, since it uses less digits than its factorization.

668227467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222742492.

The product of its digits is 1354752, while the sum is 48.

The square root of 668227467 is about 25850.0960733224. The cubic root of 668227467 is about 874.2616757357.

The spelling of 668227467 in words is "six hundred sixty-eight million, two hundred twenty-seven thousand, four hundred sixty-seven".