89708731067 has 2 divisors, whose sum is σ = 89708731068. Its totient is φ = 89708731066.

The previous prime is 89708731061. The next prime is 89708731081. The reversal of 89708731067 is 76013780798.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89708731067 - 2¹⁶ = 89708665531 is a prime.

It is not a weakly prime, because it can be changed into another prime (89708731061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44854365533 + 44854365534.

It is an arithmetic number, because the mean of its divisors is an integer number (44854365534).

Almost surely, 2^89708731067 is an apocalyptic number.

89708731067 is a deficient number, since it is larger than the sum of its proper divisors (1).

89708731067 is an equidigital number, since it uses as much as digits as its factorization.

89708731067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3556224, while the sum is 56.

The spelling of 89708731067 in words is "eighty-nine billion, seven hundred eight million, seven hundred thirty-one thousand, sixty-seven".