89719 has 6 divisors (see below), whose sum is σ = 104424. Its totient is φ = 76860.

The previous prime is 89689. The next prime is 89753. The reversal of 89719 is 91798.

It is not a de Polignac number, because 89719 - 2⁷ = 89591 is a prime.

It is a super-2 number, since 2×89719² = 16098997922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89759) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 867 + ... + 964.

It is an arithmetic number, because the mean of its divisors is an integer number (17404).

2⁸⁹⁷¹⁹ is an apocalyptic number.

89719 is a deficient number, since it is larger than the sum of its proper divisors (14705).

89719 is a wasteful number, since it uses less digits than its factorization.

89719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845 (or 1838 counting only the distinct ones).

The product of its digits is 4536, while the sum is 34.

The square root of 89719 is about 299.5313005347. The cubic root of 89719 is about 44.7673590363.

It can be divided in two parts, 89 and 719, that added together give a palindrome (808).

The spelling of 89719 in words is "eighty-nine thousand, seven hundred nineteen".