628199229 has 16 divisors (see below), whose sum is σ = 963133952. Its totient is φ = 356766768.

The previous prime is 628199179. The next prime is 628199239. The reversal of 628199229 is 922991826.

It is a happy number.

It is not a de Polignac number, because 628199229 - 2⁷ = 628199101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628199239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88339 + ... + 95184.

It is an arithmetic number, because the mean of its divisors is an integer number (60195872).

Almost surely, 2^628199229 is an apocalyptic number.

It is an amenable number.

628199229 is a deficient number, since it is larger than the sum of its proper divisors (334934723).

628199229 is a wasteful number, since it uses less digits than its factorization.

628199229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183696.

The product of its digits is 279936, while the sum is 48.

The square root of 628199229 is about 25063.9029083660. The cubic root of 628199229 is about 856.4443191631. Note that the first 3 decimals are identical.

The spelling of 628199229 in words is "six hundred twenty-eight million, one hundred ninety-nine thousand, two hundred twenty-nine".