89641771 has 2 divisors, whose sum is σ = 89641772. Its totient is φ = 89641770.

The previous prime is 89641733. The next prime is 89641789. The reversal of 89641771 is 17714698.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89641771 - 2¹⁷ = 89510699 is a prime.

It is not a weakly prime, because it can be changed into another prime (89641271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44820885 + 44820886.

It is an arithmetic number, because the mean of its divisors is an integer number (44820886).

Almost surely, 2^89641771 is an apocalyptic number.

89641771 is a deficient number, since it is larger than the sum of its proper divisors (1).

89641771 is an equidigital number, since it uses as much as digits as its factorization.

89641771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 43.

The square root of 89641771 is about 9467.9338295111. The cubic root of 89641771 is about 447.5451028685.

The spelling of 89641771 in words is "eighty-nine million, six hundred forty-one thousand, seven hundred seventy-one".