628274 has 4 divisors (see below), whose sum is σ = 942414. Its totient is φ = 314136.

The previous prime is 628267. The next prime is 628289. The reversal of 628274 is 472826.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 573049 + 55225 = 757^2 + 235^2 .

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157067 + ... + 157070.

2⁶²⁸²⁷⁴ is an apocalyptic number.

628274 is a deficient number, since it is larger than the sum of its proper divisors (314140).

628274 is a wasteful number, since it uses less digits than its factorization.

628274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314139.

The product of its digits is 5376, while the sum is 29.

The square root of 628274 is about 792.6373697978. The cubic root of 628274 is about 85.6478297056.

The spelling of 628274 in words is "six hundred twenty-eight thousand, two hundred seventy-four".