628243199 has 4 divisors (see below), whose sum is σ = 631400400. Its totient is φ = 625086000.

The previous prime is 628243163. The next prime is 628243261. The reversal of 628243199 is 991342826.

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

It is a cyclic number.

It is not a de Polignac number, because 628243199 - 2¹⁶ = 628177663 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 (628243159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1578302 + ... + 1578699.

It is an arithmetic number, because the mean of its divisors is an integer number (157850100).

Almost surely, 2^628243199 is an apocalyptic number.

628243199 is a deficient number, since it is larger than the sum of its proper divisors (3157201).

628243199 is a wasteful number, since it uses less digits than its factorization.

628243199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3157200.

The product of its digits is 186624, while the sum is 44.

The square root of 628243199 is about 25064.7800509001. The cubic root of 628243199 is about 856.4643006045.

The spelling of 628243199 in words is "six hundred twenty-eight million, two hundred forty-three thousand, one hundred ninety-nine".