669464906 has 8 divisors (see below), whose sum is σ = 1095488064. Its totient is φ = 304302220.

The previous prime is 669464891. The next prime is 669464909. The reversal of 669464906 is 609464966.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (669464909) 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, 15215090 + ... + 15215133.

It is an arithmetic number, because the mean of its divisors is an integer number (136936008).

Almost surely, 2^669464906 is an apocalyptic number.

669464906 is a deficient number, since it is larger than the sum of its proper divisors (426023158).

669464906 is a wasteful number, since it uses less digits than its factorization.

669464906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30430236.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The square root of 669464906 is about 25874.0199041432. The cubic root of 669464906 is about 874.8010022564.

The spelling of 669464906 in words is "six hundred sixty-nine million, four hundred sixty-four thousand, nine hundred six".