628283311 has 2 divisors, whose sum is σ = 628283312. Its totient is φ = 628283310.

The previous prime is 628283281. The next prime is 628283323. The reversal of 628283311 is 113382826.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 628283311 - 2¹¹ = 628281263 is a prime.

It is a super-2 number, since 2×628283311² = 789479837762245442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628283611) by changing a digit.

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 as a sum of consecutive naturals, namely, 314141655 + 314141656.

It is an arithmetic number, because the mean of its divisors is an integer number (314141656).

Almost surely, 2^628283311 is an apocalyptic number.

628283311 is a deficient number, since it is larger than the sum of its proper divisors (1).

628283311 is an equidigital number, since it uses as much as digits as its factorization.

628283311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 34.

The square root of 628283311 is about 25065.5802047349. The cubic root of 628283311 is about 856.4825280282.

The spelling of 628283311 in words is "six hundred twenty-eight million, two hundred eighty-three thousand, three hundred eleven".