2196187397 has 2 divisors, whose sum is σ = 2196187398. Its totient is φ = 2196187396.

The previous prime is 2196187373. The next prime is 2196187417. The reversal of 2196187397 is 7937816912.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2118852961 + 77334436 = 46031^2 + 8794^2 .

It is a cyclic number.

It is not a de Polignac number, because 2196187397 - 2⁸ = 2196187141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2196180397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098093698 + 1098093699.

It is an arithmetic number, because the mean of its divisors is an integer number (1098093699).

Almost surely, 2^2196187397 is an apocalyptic number.

It is an amenable number.

2196187397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2196187397 is an equidigital number, since it uses as much as digits as its factorization.

2196187397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 53.

The square root of 2196187397 is about 46863.4974900508. The cubic root of 2196187397 is about 1299.8397035096.

The spelling of 2196187397 in words is "two billion, one hundred ninety-six million, one hundred eighty-seven thousand, three hundred ninety-seven".