628464 has 20 divisors (see below), whose sum is σ = 1623656. Its totient is φ = 209472.

The previous prime is 628447. The next prime is 628477. The reversal of 628464 is 464826.

628464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6499 + ... + 6594.

2⁶²⁸⁴⁶⁴ is an apocalyptic number.

It is an amenable number.

628464 is an abundant number, since it is smaller than the sum of its proper divisors (995192).

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

628464 is a wasteful number, since it uses less digits than its factorization.

628464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13104 (or 13098 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 628464 is about 792.7572137799. The cubic root of 628464 is about 85.6564625884.

The spelling of 628464 in words is "six hundred twenty-eight thousand, four hundred sixty-four".