89974734686887 has 2 divisors, whose sum is σ = 89974734686888. Its totient is φ = 89974734686886.

The previous prime is 89974734686713. The next prime is 89974734686927. The reversal of 89974734686887 is 78868643747998.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89974734686887 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89974734686795 and 89974734686804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89974714686887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44987367343443 + 44987367343444.

It is an arithmetic number, because the mean of its divisors is an integer number (44987367343444).

Almost surely, 2^{89974734686887} is an apocalyptic number.

89974734686887 is a deficient number, since it is larger than the sum of its proper divisors (1).

89974734686887 is an equidigital number, since it uses as much as digits as its factorization.

89974734686887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 196644962304, while the sum is 94.

The spelling of 89974734686887 in words is "eighty-nine trillion, nine hundred seventy-four billion, seven hundred thirty-four million, six hundred eighty-six thousand, eight hundred eighty-seven".