91096097 has 2 divisors, whose sum is σ = 91096098. Its totient is φ = 91096096.

The previous prime is 91096079. The next prime is 91096121. The reversal of 91096097 is 79069019.

It is a happy number.

Together with previous prime (91096079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90935296 + 160801 = 9536^2 + 401^2 .

It is an emirp because it is prime and its reverse (79069019) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91096097 - 2¹⁶ = 91030561 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (91096597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45548048 + 45548049.

It is an arithmetic number, because the mean of its divisors is an integer number (45548049).

Almost surely, 2^91096097 is an apocalyptic number.

It is an amenable number.

91096097 is a deficient number, since it is larger than the sum of its proper divisors (1).

91096097 is an equidigital number, since it uses as much as digits as its factorization.

91096097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 91096097 is about 9544.4275365262. The cubic root of 91096097 is about 449.9524180142.

The spelling of 91096097 in words is "ninety-one million, ninety-six thousand, ninety-seven".