200418397 has 2 divisors, whose sum is σ = 200418398. Its totient is φ = 200418396.

The previous prime is 200418377. The next prime is 200418431. The reversal of 200418397 is 793814002.

It is an a-pointer prime, because the next prime (200418431) can be obtained adding 200418397 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195692121 + 4726276 = 13989^2 + 2174^2 .

It is a cyclic number.

It is not a de Polignac number, because 200418397 - 2¹⁵ = 200385629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200418377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100209198 + 100209199.

It is an arithmetic number, because the mean of its divisors is an integer number (100209199).

Almost surely, 2^200418397 is an apocalyptic number.

It is an amenable number.

200418397 is a deficient number, since it is larger than the sum of its proper divisors (1).

200418397 is an equidigital number, since it uses as much as digits as its factorization.

200418397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 200418397 is about 14156.9204631516. The cubic root of 200418397 is about 585.2110636853.

The spelling of 200418397 in words is "two hundred million, four hundred eighteen thousand, three hundred ninety-seven".