628234 has 4 divisors (see below), whose sum is σ = 942354. Its totient is φ = 314116.

The previous prime is 628231. The next prime is 628261. The reversal of 628234 is 432826.

It is a happy number.

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., 558009 + 70225 = 747^2 + 265^2 .

It is a junction number, because it is equal to n+sod(n) for n = 628199 and 628208.

It is not an unprimeable number, because it can be changed into a prime (628231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157057 + ... + 157060.

2⁶²⁸²³⁴ is an apocalyptic number.

628234 is a deficient number, since it is larger than the sum of its proper divisors (314120).

628234 is a wasteful number, since it uses less digits than its factorization.

628234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314119.

The product of its digits is 2304, while the sum is 25.

The square root of 628234 is about 792.6121371768. The cubic root of 628234 is about 85.6460120348.

The spelling of 628234 in words is "six hundred twenty-eight thousand, two hundred thirty-four".