628594 has 8 divisors (see below), whose sum is σ = 957168. Its totient is φ = 309540.

The previous prime is 628591. The next prime is 628651. The reversal of 628594 is 495826.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (628591) 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 3 ways as a sum of consecutive naturals, for example, 2212 + ... + 2479.

It is an arithmetic number, because the mean of its divisors is an integer number (119646).

2⁶²⁸⁵⁹⁴ is an apocalyptic number.

628594 is a deficient number, since it is larger than the sum of its proper divisors (328574).

628594 is a wasteful number, since it uses less digits than its factorization.

628594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4760.

The product of its digits is 17280, while the sum is 34.

The square root of 628594 is about 792.8392018562. The cubic root of 628594 is about 85.6623682953.

The spelling of 628594 in words is "six hundred twenty-eight thousand, five hundred ninety-four".