89471719 has 4 divisors (see below), whose sum is σ = 89490640. Its totient is φ = 89452800.

The previous prime is 89471713. The next prime is 89471729. The reversal of 89471719 is 91717498.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 89471719 - 2¹³ = 89463527 is a prime.

It is a super-2 number, since 2×89471719² = 16010377001629922, 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 (89471713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4519 + ... + 14119.

It is an arithmetic number, because the mean of its divisors is an integer number (22372660).

Almost surely, 2^89471719 is an apocalyptic number.

89471719 is a deficient number, since it is larger than the sum of its proper divisors (18921).

89471719 is an equidigital number, since it uses as much as digits as its factorization.

89471719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18920.

The product of its digits is 127008, while the sum is 46.

The square root of 89471719 is about 9458.9491488220. The cubic root of 89471719 is about 447.2619234439.

The spelling of 89471719 in words is "eighty-nine million, four hundred seventy-one thousand, seven hundred nineteen".