89747171 has 2 divisors, whose sum is σ = 89747172. Its totient is φ = 89747170.

The previous prime is 89747159. The next prime is 89747197. The reversal of 89747171 is 17174798.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89747171 - 2¹⁸ = 89485027 is a prime.

It is not a weakly prime, because it can be changed into another prime (89747101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44873585 + 44873586.

It is an arithmetic number, because the mean of its divisors is an integer number (44873586).

Almost surely, 2^89747171 is an apocalyptic number.

89747171 is a deficient number, since it is larger than the sum of its proper divisors (1).

89747171 is an equidigital number, since it uses as much as digits as its factorization.

89747171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 98784, while the sum is 44.

The square root of 89747171 is about 9473.4983506622. The cubic root of 89747171 is about 447.7204406882.

The spelling of 89747171 in words is "eighty-nine million, seven hundred forty-seven thousand, one hundred seventy-one".