200097661 has 2 divisors, whose sum is σ = 200097662. Its totient is φ = 200097660.

The previous prime is 200097649. The next prime is 200097673. The reversal of 200097661 is 166790002.

It is a balanced prime because it is at equal distance from previous prime (200097649) and next prime (200097673).

It can be written as a sum of positive squares in only one way, i.e., 197936761 + 2160900 = 14069^2 + 1470^2 .

It is a cyclic number.

It is not a de Polignac number, because 200097661 - 2¹⁷ = 199966589 is a prime.

It is equal to p_11084098 and since 200097661 and 11084098 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200097641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100048830 + 100048831.

It is an arithmetic number, because the mean of its divisors is an integer number (100048831).

Almost surely, 2^200097661 is an apocalyptic number.

It is an amenable number.

200097661 is a deficient number, since it is larger than the sum of its proper divisors (1).

200097661 is an equidigital number, since it uses as much as digits as its factorization.

200097661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 200097661 is about 14145.5880400922. The cubic root of 200097661 is about 584.8987196520.

The spelling of 200097661 in words is "two hundred million, ninety-seven thousand, six hundred sixty-one".