628486 has 4 divisors (see below), whose sum is σ = 942732. Its totient is φ = 314242.

The previous prime is 628477. The next prime is 628487. The reversal of 628486 is 684826.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 684826 = 2 ⋅342413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157120 + ... + 157123.

It is an arithmetic number, because the mean of its divisors is an integer number (235683).

2⁶²⁸⁴⁸⁶ is an apocalyptic number.

628486 is a deficient number, since it is larger than the sum of its proper divisors (314246).

628486 is a wasteful number, since it uses less digits than its factorization.

628486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314245.

The product of its digits is 18432, while the sum is 34.

The square root of 628486 is about 792.7710892811. The cubic root of 628486 is about 85.6574620730.

The spelling of 628486 in words is "six hundred twenty-eight thousand, four hundred eighty-six".