200972791 has 2 divisors, whose sum is σ = 200972792. Its totient is φ = 200972790.

The previous prime is 200972743. The next prime is 200972803. The reversal of 200972791 is 197279002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 200972791 - 2¹¹ = 200970743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200972791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200972701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100486395 + 100486396.

It is an arithmetic number, because the mean of its divisors is an integer number (100486396).

Almost surely, 2^200972791 is an apocalyptic number.

200972791 is a deficient number, since it is larger than the sum of its proper divisors (1).

200972791 is an equidigital number, since it uses as much as digits as its factorization.

200972791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 200972791 is about 14176.4872588381. The cubic root of 200972791 is about 585.7501672389.

The spelling of 200972791 in words is "two hundred million, nine hundred seventy-two thousand, seven hundred ninety-one".