666484828 has 12 divisors (see below), whose sum is σ = 1167389440. Its totient is φ = 332944992.

The previous prime is 666484799. The next prime is 666484829. The reversal of 666484828 is 828484666.

666484828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666484829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69276 + ... + 78307.

Almost surely, 2^666484828 is an apocalyptic number.

It is an amenable number.

666484828 is a deficient number, since it is larger than the sum of its proper divisors (500904612).

666484828 is a wasteful number, since it uses less digits than its factorization.

666484828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148716 (or 148714 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 52.

The square root of 666484828 is about 25816.3674439298. The cubic root of 666484828 is about 873.5010321604.

The spelling of 666484828 in words is "six hundred sixty-six million, four hundred eighty-four thousand, eight hundred twenty-eight".