628263895 has 16 divisors (see below), whose sum is σ = 865958400. Its totient is φ = 428639904.

The previous prime is 628263893. The next prime is 628263913. The reversal of 628263895 is 598362826.

It is not a de Polignac number, because 628263895 - 2¹ = 628263893 is a prime.

It is a super-3 number, since 3×628263895³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628263893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38137 + ... + 52066.

It is an arithmetic number, because the mean of its divisors is an integer number (54122400).

Almost surely, 2^628263895 is an apocalyptic number.

628263895 is a deficient number, since it is larger than the sum of its proper divisors (237694505).

628263895 is a wasteful number, since it uses less digits than its factorization.

628263895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90414.

The product of its digits is 1244160, while the sum is 49.

The square root of 628263895 is about 25065.1928977217. The cubic root of 628263895 is about 856.4737052377.

The spelling of 628263895 in words is "six hundred twenty-eight million, two hundred sixty-three thousand, eight hundred ninety-five".