2107868197 has 2 divisors, whose sum is σ = 2107868198. Its totient is φ = 2107868196.

The previous prime is 2107868183. The next prime is 2107868251. The reversal of 2107868197 is 7918687012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1166973921 + 940894276 = 34161^2 + 30674^2 .

It is a cyclic number.

It is not a de Polignac number, because 2107868197 - 2⁷ = 2107868069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2107868197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2107868177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1053934098 + 1053934099.

It is an arithmetic number, because the mean of its divisors is an integer number (1053934099).

Almost surely, 2^2107868197 is an apocalyptic number.

It is an amenable number.

2107868197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2107868197 is an equidigital number, since it uses as much as digits as its factorization.

2107868197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 49.

The square root of 2107868197 is about 45911.5257533443. The cubic root of 2107868197 is about 1282.1765128195.

The spelling of 2107868197 in words is "two billion, one hundred seven million, eight hundred sixty-eight thousand, one hundred ninety-seven".