628920606 has 8 divisors (see below), whose sum is σ = 1257841224. Its totient is φ = 209640200.

The previous prime is 628920601. The next prime is 628920647. The reversal of 628920606 is 606029826.

628920606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

628920606 is an admirable number.

It is a super-2 number, since 2×628920606² = 791082257302814472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628920601) 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, 52410045 + ... + 52410056.

It is an arithmetic number, because the mean of its divisors is an integer number (157230153).

Almost surely, 2^628920606 is an apocalyptic number.

628920606 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

628920606 is a wasteful number, since it uses less digits than its factorization.

628920606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104820106.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 628920606 is about 25078.2895349743. The cubic root of 628920606 is about 856.7720192887.

The spelling of 628920606 in words is "six hundred twenty-eight million, nine hundred twenty thousand, six hundred six".