628788 has 24 divisors (see below), whose sum is σ = 1492960. Its totient is φ = 205920.

The previous prime is 628787. The next prime is 628799. The reversal of 628788 is 887826.

628788 = T₁₁₂ + T₁₁₃ + ... + T₁₇₂.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303 + ... + 1161.

2⁶²⁸⁷⁸⁸ is an apocalyptic number.

It is an amenable number.

628788 is an abundant number, since it is smaller than the sum of its proper divisors (864172).

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

628788 is a wasteful number, since it uses less digits than its factorization.

628788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927 (or 925 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The square root of 628788 is about 792.9615375288. The cubic root of 628788 is about 85.6711799130.

The spelling of 628788 in words is "six hundred twenty-eight thousand, seven hundred eighty-eight".