89108447 has 2 divisors, whose sum is σ = 89108448. Its totient is φ = 89108446.

The previous prime is 89108443. The next prime is 89108449. The reversal of 89108447 is 74480198.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89108447 - 2² = 89108443 is a prime.

Together with 89108449, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89108443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44554223 + 44554224.

It is an arithmetic number, because the mean of its divisors is an integer number (44554224).

Almost surely, 2^89108447 is an apocalyptic number.

89108447 is a deficient number, since it is larger than the sum of its proper divisors (1).

89108447 is an equidigital number, since it uses as much as digits as its factorization.

89108447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 89108447 is about 9439.7270617322. The cubic root of 89108447 is about 446.6557798515.

The spelling of 89108447 in words is "eighty-nine million, one hundred eight thousand, four hundred forty-seven".