89671 has 2 divisors, whose sum is σ = 89672. Its totient is φ = 89670.

The previous prime is 89669. The next prime is 89681. The reversal of 89671 is 17698.

89671 = T₂₄₃ + T₂₄₄ + T₂₄₅.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89671 - 2¹ = 89669 is a prime.

Together with 89669, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44835 + 44836.

It is an arithmetic number, because the mean of its divisors is an integer number (44836).

2⁸⁹⁶⁷¹ is an apocalyptic number.

89671 is the 245-th centered triangular number.

89671 is a deficient number, since it is larger than the sum of its proper divisors (1).

89671 is an equidigital number, since it uses as much as digits as its factorization.

89671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 31.

The square root of 89671 is about 299.4511646329. The cubic root of 89671 is about 44.7593740441.

The spelling of 89671 in words is "eighty-nine thousand, six hundred seventy-one".