9027806197 has 2 divisors, whose sum is σ = 9027806198. Its totient is φ = 9027806196.

The previous prime is 9027806189. The next prime is 9027806213. The reversal of 9027806197 is 7916087209.

It is a happy number.

9027806197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7237585476 + 1790220721 = 85074^2 + 42311^2 .

It is a cyclic number.

It is not a de Polignac number, because 9027806197 - 2³ = 9027806189 is a prime.

It is a super-3 number, since 3×9027806197³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9027806197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9027816197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4513903098 + 4513903099.

It is an arithmetic number, because the mean of its divisors is an integer number (4513903099).

Almost surely, 2^9027806197 is an apocalyptic number.

It is an amenable number.

9027806197 is a deficient number, since it is larger than the sum of its proper divisors (1).

9027806197 is an equidigital number, since it uses as much as digits as its factorization.

9027806197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 49.

The square root of 9027806197 is about 95014.7683099843. The cubic root of 9027806197 is about 2082.2238140275.

The spelling of 9027806197 in words is "nine billion, twenty-seven million, eight hundred six thousand, one hundred ninety-seven".