628492 has 12 divisors (see below), whose sum is σ = 1115856. Its totient is φ = 309680.

The previous prime is 628487. The next prime is 628493. The reversal of 628492 is 294826.

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 3 ways as a sum of consecutive naturals, for example, 823 + ... + 1390.

It is an arithmetic number, because the mean of its divisors is an integer number (92988).

2⁶²⁸⁴⁹² is an apocalyptic number.

It is an amenable number.

628492 is a deficient number, since it is larger than the sum of its proper divisors (487364).

628492 is a wasteful number, since it uses less digits than its factorization.

628492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288 (or 2286 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 628492 is about 792.7748734666. The cubic root of 628492 is about 85.6577346556.

The spelling of 628492 in words is "six hundred twenty-eight thousand, four hundred ninety-two".