97843234897 has 2 divisors, whose sum is σ = 97843234898. Its totient is φ = 97843234896.

The previous prime is 97843234843. The next prime is 97843234903. The reversal of 97843234897 is 79843234879.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77952081601 + 19891153296 = 279199^2 + 141036^2 .

It is a cyclic number.

It is not a de Polignac number, because 97843234897 - 2¹⁵ = 97843202129 is a prime.

It is not a weakly prime, because it can be changed into another prime (97843234297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48921617448 + 48921617449.

It is an arithmetic number, because the mean of its divisors is an integer number (48921617449).

Almost surely, 2^97843234897 is an apocalyptic number.

It is an amenable number.

97843234897 is a deficient number, since it is larger than the sum of its proper divisors (1).

97843234897 is an equidigital number, since it uses as much as digits as its factorization.

97843234897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73156608, while the sum is 64.

The spelling of 97843234897 in words is "ninety-seven billion, eight hundred forty-three million, two hundred thirty-four thousand, eight hundred ninety-seven".