200628791 has 4 divisors (see below), whose sum is σ = 218867784. Its totient is φ = 182389800.

The previous prime is 200628773. The next prime is 200628803. The reversal of 200628791 is 197826002.

It is a happy number.

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 200628791 - 2¹⁰ = 200627767 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 (200628731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9119480 + ... + 9119501.

It is an arithmetic number, because the mean of its divisors is an integer number (54716946).

Almost surely, 2^200628791 is an apocalyptic number.

200628791 is a deficient number, since it is larger than the sum of its proper divisors (18238993).

200628791 is a wasteful number, since it uses less digits than its factorization.

200628791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18238992.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 200628791 is about 14164.3492967379. The cubic root of 200628791 is about 585.4157718342.

The spelling of 200628791 in words is "two hundred million, six hundred twenty-eight thousand, seven hundred ninety-one".