87943837097 has 2 divisors, whose sum is σ = 87943837098. Its totient is φ = 87943837096.

The previous prime is 87943837027. The next prime is 87943837127. The reversal of 87943837097 is 79073834978.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87870152041 + 73685056 = 296429^2 + 8584^2 .

It is a cyclic number.

It is not a de Polignac number, because 87943837097 - 2¹⁰ = 87943836073 is a prime.

It is not a weakly prime, because it can be changed into another prime (87943837027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43971918548 + 43971918549.

It is an arithmetic number, because the mean of its divisors is an integer number (43971918549).

Almost surely, 2^87943837097 is an apocalyptic number.

It is an amenable number.

87943837097 is a deficient number, since it is larger than the sum of its proper divisors (1).

87943837097 is an equidigital number, since it uses as much as digits as its factorization.

87943837097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64012032, while the sum is 65.

The spelling of 87943837097 in words is "eighty-seven billion, nine hundred forty-three million, eight hundred thirty-seven thousand, ninety-seven".