628085833 has 2 divisors, whose sum is σ = 628085834. Its totient is φ = 628085832.

The previous prime is 628085813. The next prime is 628085837. The reversal of 628085833 is 338580826.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 423824569 + 204261264 = 20587^2 + 14292^2 .

It is a cyclic number.

It is not a de Polignac number, because 628085833 - 2¹³ = 628077641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 628085833.

It is not a weakly prime, because it can be changed into another prime (628085837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314042916 + 314042917.

It is an arithmetic number, because the mean of its divisors is an integer number (314042917).

Almost surely, 2^628085833 is an apocalyptic number.

It is an amenable number.

628085833 is a deficient number, since it is larger than the sum of its proper divisors (1).

628085833 is an equidigital number, since it uses as much as digits as its factorization.

628085833 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 628085833 is about 25061.6406685596. The cubic root of 628085833 is about 856.3927839178.

The spelling of 628085833 in words is "six hundred twenty-eight million, eighty-five thousand, eight hundred thirty-three".