89741216197 has 2 divisors, whose sum is σ = 89741216198. Its totient is φ = 89741216196.

The previous prime is 89741216183. The next prime is 89741216239. The reversal of 89741216197 is 79161214798.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89715824676 + 25391521 = 299526^2 + 5039^2 .

It is a cyclic number.

It is not a de Polignac number, because 89741216197 - 2¹¹ = 89741214149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89741216167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44870608098 + 44870608099.

It is an arithmetic number, because the mean of its divisors is an integer number (44870608099).

Almost surely, 2^89741216197 is an apocalyptic number.

It is an amenable number.

89741216197 is a deficient number, since it is larger than the sum of its proper divisors (1).

89741216197 is an equidigital number, since it uses as much as digits as its factorization.

89741216197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 55.

The spelling of 89741216197 in words is "eighty-nine billion, seven hundred forty-one million, two hundred sixteen thousand, one hundred ninety-seven".