628696 has 16 divisors (see below), whose sum is σ = 1193400. Its totient is φ = 310464.

The previous prime is 628687. The next prime is 628699. The reversal of 628696 is 696826.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271 + ... + 1153.

2⁶²⁸⁶⁹⁶ is an apocalyptic number.

It is an amenable number.

628696 is a deficient number, since it is larger than the sum of its proper divisors (564704).

628696 is a wasteful number, since it uses less digits than its factorization.

628696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978 (or 974 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 628696 is about 792.9035250268. The cubic root of 628696 is about 85.6670014337.

The spelling of 628696 in words is "six hundred twenty-eight thousand, six hundred ninety-six".