628047 has 16 divisors (see below), whose sum is σ = 1063680. Its totient is φ = 358776.

The previous prime is 628037. The next prime is 628049. The reversal of 628047 is 740826.

It is not a de Polignac number, because 628047 - 2⁷ = 627919 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 628047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1473 + ... + 1850.

It is an arithmetic number, because the mean of its divisors is an integer number (66480).

2⁶²⁸⁰⁴⁷ is an apocalyptic number.

628047 is a deficient number, since it is larger than the sum of its proper divisors (435633).

628047 is a wasteful number, since it uses less digits than its factorization.

628047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3339 (or 3333 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 628047 is about 792.4941640164. The cubic root of 628047 is about 85.6375134002.

The spelling of 628047 in words is "six hundred twenty-eight thousand, forty-seven".