89065687 has 2 divisors, whose sum is σ = 89065688. Its totient is φ = 89065686.

The previous prime is 89065679. The next prime is 89065727. The reversal of 89065687 is 78656098.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89065687 - 2³ = 89065679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89065687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89065607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44532843 + 44532844.

It is an arithmetic number, because the mean of its divisors is an integer number (44532844).

Almost surely, 2^89065687 is an apocalyptic number.

89065687 is a deficient number, since it is larger than the sum of its proper divisors (1).

89065687 is an equidigital number, since it uses as much as digits as its factorization.

89065687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 89065687 is about 9437.4618939628. The cubic root of 89065687 is about 446.5843236369.

The spelling of 89065687 in words is "eighty-nine million, sixty-five thousand, six hundred eighty-seven".