669627267 has 8 divisors (see below), whose sum is σ = 931655424. Its totient is φ = 427008648.

The previous prime is 669627253. The next prime is 669627271. The reversal of 669627267 is 762726966.

It is a happy number.

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

It is not a de Polignac number, because 669627267 - 2²³ = 661238659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (669627227) 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 7 ways as a sum of consecutive naturals, for example, 4852303 + ... + 4852440.

It is an arithmetic number, because the mean of its divisors is an integer number (116456928).

Almost surely, 2^669627267 is an apocalyptic number.

669627267 is a deficient number, since it is larger than the sum of its proper divisors (262028157).

669627267 is a wasteful number, since it uses less digits than its factorization.

669627267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9704769.

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

The square root of 669627267 is about 25877.1572434068. The cubic root of 669627267 is about 874.8717164858.

The spelling of 669627267 in words is "six hundred sixty-nine million, six hundred twenty-seven thousand, two hundred sixty-seven".