628958133 has 12 divisors (see below), whose sum is σ = 908744928. Its totient is φ = 419190120.

The previous prime is 628958131. The next prime is 628958137. The reversal of 628958133 is 331859826.

It is a happy number.

628958133 is a `hidden beast` number, since 62 + 8 + 9 + 581 + 3 + 3 = 666.

It is not a de Polignac number, because 628958133 - 2¹ = 628958131 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628958131) 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 11 ways as a sum of consecutive naturals, for example, 36666 + ... + 51012.

It is an arithmetic number, because the mean of its divisors is an integer number (75728744).

Almost surely, 2^628958133 is an apocalyptic number.

It is an amenable number.

628958133 is a deficient number, since it is larger than the sum of its proper divisors (279786795).

628958133 is a wasteful number, since it uses less digits than its factorization.

628958133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19224 (or 19221 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 628958133 is about 25079.0377207739. The cubic root of 628958133 is about 856.7890598307.

The spelling of 628958133 in words is "six hundred twenty-eight million, nine hundred fifty-eight thousand, one hundred thirty-three".