89028235871 has 2 divisors, whose sum is σ = 89028235872. Its totient is φ = 89028235870.

The previous prime is 89028235853. The next prime is 89028235927. The reversal of 89028235871 is 17853282098.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89028235871 is a prime.

It is a super-2 number, since 2×89028235871² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89028235841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44514117935 + 44514117936.

It is an arithmetic number, because the mean of its divisors is an integer number (44514117936).

Almost surely, 2^89028235871 is an apocalyptic number.

89028235871 is a deficient number, since it is larger than the sum of its proper divisors (1).

89028235871 is an equidigital number, since it uses as much as digits as its factorization.

89028235871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 89028235871 in words is "eighty-nine billion, twenty-eight million, two hundred thirty-five thousand, eight hundred seventy-one".