628754 has 16 divisors (see below), whose sum is σ = 1091328. Its totient is φ = 266112.

The previous prime is 628753. The next prime is 628757. The reversal of 628754 is 457826.

It is a self number, because there is not a number n which added to its sum of digits gives 628754.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 628754.

It is not an unprimeable number, because it can be changed into a prime (628753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1127 + ... + 1589.

It is an arithmetic number, because the mean of its divisors is an integer number (68208).

2⁶²⁸⁷⁵⁴ is an apocalyptic number.

628754 is a deficient number, since it is larger than the sum of its proper divisors (462574).

628754 is a wasteful number, since it uses less digits than its factorization.

628754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569.

The product of its digits is 13440, while the sum is 32.

The square root of 628754 is about 792.9400986203. The cubic root of 628754 is about 85.6696357398.

The spelling of 628754 in words is "six hundred twenty-eight thousand, seven hundred fifty-four".