7893861197 has 2 divisors, whose sum is σ = 7893861198. Its totient is φ = 7893861196.

The previous prime is 7893861193. The next prime is 7893861223. The reversal of 7893861197 is 7911683987.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7712528041 + 181333156 = 87821^2 + 13466^2 .

It is a cyclic number.

It is not a de Polignac number, because 7893861197 - 2² = 7893861193 is a prime.

It is a super-3 number, since 3×7893861197³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7893861191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3946930598 + 3946930599.

It is an arithmetic number, because the mean of its divisors is an integer number (3946930599).

Almost surely, 2^7893861197 is an apocalyptic number.

It is an amenable number.

7893861197 is a deficient number, since it is larger than the sum of its proper divisors (1).

7893861197 is an equidigital number, since it uses as much as digits as its factorization.

7893861197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 59.

The square root of 7893861197 is about 88847.4039969655. The cubic root of 7893861197 is about 1991.1156927294.

The spelling of 7893861197 in words is "seven billion, eight hundred ninety-three million, eight hundred sixty-one thousand, one hundred ninety-seven".