89539208478697 has 2 divisors, whose sum is σ = 89539208478698. Its totient is φ = 89539208478696.

The previous prime is 89539208478673. The next prime is 89539208478751. The reversal of 89539208478697 is 79687480293598.

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., 51020006123241 + 38519202355456 = 7142829^2 + 6206384^2 .

It is a cyclic number.

It is not a de Polignac number, because 89539208478697 - 2⁷ = 89539208478569 is a prime.

It is not a weakly prime, because it can be changed into another prime (89539208478607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44769604239348 + 44769604239349.

It is an arithmetic number, because the mean of its divisors is an integer number (44769604239349).

Almost surely, 2^{89539208478697} is an apocalyptic number.

It is an amenable number.

89539208478697 is a deficient number, since it is larger than the sum of its proper divisors (1).

89539208478697 is an equidigital number, since it uses as much as digits as its factorization.

89539208478697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13168189440, while the sum is 85.

The spelling of 89539208478697 in words is "eighty-nine trillion, five hundred thirty-nine billion, two hundred eight million, four hundred seventy-eight thousand, six hundred ninety-seven".