628494 has 24 divisors (see below), whose sum is σ = 1310760. Its totient is φ = 200880.

The previous prime is 628493. The next prime is 628499. The reversal of 628494 is 494826.

628494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×628494³ = 744774266917133352, which contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5712 + ... + 5820.

It is an arithmetic number, because the mean of its divisors is an integer number (54615).

2⁶²⁸⁴⁹⁴ is an apocalyptic number.

628494 is an abundant number, since it is smaller than the sum of its proper divisors (682266).

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

628494 is a wasteful number, since it uses less digits than its factorization.

628494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 145 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 628494 is about 792.7761348578. The cubic root of 628494 is about 85.6578255161.

The spelling of 628494 in words is "six hundred twenty-eight thousand, four hundred ninety-four".