71489 has 8 divisors (see below), whose sum is σ = 79968. Its totient is φ = 63360.

The previous prime is 71483. The next prime is 71503. The reversal of 71489 is 98417.

71489 is nontrivially palindromic in base 5.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71489 - 2⁴ = 71473 is a prime.

It is a super-2 number, since 2×71489² = 10221354242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 71489.

It is not an unprimeable number, because it can be changed into a prime (71483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689 + ... + 785.

It is an arithmetic number, because the mean of its divisors is an integer number (9996).

2⁷¹⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

71489 is a deficient number, since it is larger than the sum of its proper divisors (8479).

71489 is a wasteful number, since it uses less digits than its factorization.

71489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175.

The product of its digits is 2016, while the sum is 29.

The square root of 71489 is about 267.3742695175. The cubic root of 71489 is about 41.5030239244.

It can be divided in two parts, 714 and 89, that multiplied together give a triangular number (63546 = T₃₅₆).

The spelling of 71489 in words is "seventy-one thousand, four hundred eighty-nine".