628666106 has 8 divisors (see below), whose sum is σ = 964929504. Its totient is φ = 307022940.

The previous prime is 628666097. The next prime is 628666123. The reversal of 628666106 is 601666826.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3654950 + ... + 3655121.

It is an arithmetic number, because the mean of its divisors is an integer number (120616188).

Almost surely, 2^628666106 is an apocalyptic number.

628666106 is a deficient number, since it is larger than the sum of its proper divisors (336263398).

628666106 is a wasteful number, since it uses less digits than its factorization.

628666106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7310116.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 628666106 is about 25073.2149115346. The cubic root of 628666106 is about 856.6564361263.

The spelling of 628666106 in words is "six hundred twenty-eight million, six hundred sixty-six thousand, one hundred six".