89544469 has 4 divisors (see below), whose sum is σ = 102336544. Its totient is φ = 76752396.

The previous prime is 89544449. The next prime is 89544487. The reversal of 89544469 is 96444598.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 89544469 - 2⁹ = 89543957 is a prime.

It is a super-2 number, since 2×89544469² = 16036423856983922, 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 (89544409) 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, 6396027 + ... + 6396040.

It is an arithmetic number, because the mean of its divisors is an integer number (25584136).

Almost surely, 2^89544469 is an apocalyptic number.

It is an amenable number.

89544469 is a deficient number, since it is larger than the sum of its proper divisors (12792075).

89544469 is a wasteful number, since it uses less digits than its factorization.

89544469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12792074.

The product of its digits is 1244160, while the sum is 49.

The square root of 89544469 is about 9462.7939320266. The cubic root of 89544469 is about 447.3831144014.

The spelling of 89544469 in words is "eighty-nine million, five hundred forty-four thousand, four hundred sixty-nine".