628030806 has 16 divisors (see below), whose sum is σ = 1352681904. Its totient is φ = 193240224.

The previous prime is 628030787. The next prime is 628030811. The reversal of 628030806 is 608030826.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4025761 + ... + 4025916.

It is an arithmetic number, because the mean of its divisors is an integer number (84542619).

Almost surely, 2^628030806 is an apocalyptic number.

628030806 is an abundant number, since it is smaller than the sum of its proper divisors (724651098).

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

628030806 is a wasteful number, since it uses less digits than its factorization.

628030806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8051695.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 628030806 is about 25060.5428113599. The cubic root of 628030806 is about 856.3677734816.

The spelling of 628030806 in words is "six hundred twenty-eight million, thirty thousand, eight hundred six".