628596 has 36 divisors (see below), whose sum is σ = 1674400. Its totient is φ = 198288.

The previous prime is 628591. The next prime is 628651. The reversal of 628596 is 695826.

628596 is a `hidden beast` number, since 62 + 8 + 596 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 628596.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 225 + ... + 1143.

2⁶²⁸⁵⁹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 628596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (837200).

628596 is an abundant number, since it is smaller than the sum of its proper divisors (1045804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

628596 is a wasteful number, since it uses less digits than its factorization.

628596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948 (or 943 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 628596 is about 792.8404631450. The cubic root of 628596 is about 85.6624591459.

The spelling of 628596 in words is "six hundred twenty-eight thousand, five hundred ninety-six".