628892116 has 6 divisors (see below), whose sum is σ = 1100561210. Its totient is φ = 314446056.

The previous prime is 628892113. The next prime is 628892123. The reversal of 628892116 is 611298826.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 348195600 + 280696516 = 18660^2 + 16754^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628892111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78611511 + ... + 78611518.

Almost surely, 2^628892116 is an apocalyptic number.

It is an amenable number.

628892116 is a deficient number, since it is larger than the sum of its proper divisors (471669094).

628892116 is a wasteful number, since it uses less digits than its factorization.

628892116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157223033 (or 157223031 counting only the distinct ones).

The product of its digits is 82944, while the sum is 43.

The square root of 628892116 is about 25077.7215073459. The cubic root of 628892116 is about 856.7590818828.

The spelling of 628892116 in words is "six hundred twenty-eight million, eight hundred ninety-two thousand, one hundred sixteen".