89861171 has 2 divisors, whose sum is σ = 89861172. Its totient is φ = 89861170.

The previous prime is 89861159. The next prime is 89861231. The reversal of 89861171 is 17116898.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89861171 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89861131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44930585 + 44930586.

It is an arithmetic number, because the mean of its divisors is an integer number (44930586).

Almost surely, 2^89861171 is an apocalyptic number.

89861171 is a deficient number, since it is larger than the sum of its proper divisors (1).

89861171 is an equidigital number, since it uses as much as digits as its factorization.

89861171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 41.

The square root of 89861171 is about 9479.5132258993. The cubic root of 89861171 is about 447.9099305404.

The spelling of 89861171 in words is "eighty-nine million, eight hundred sixty-one thousand, one hundred seventy-one".