89567221 has 4 divisors (see below), whose sum is σ = 93461472. Its totient is φ = 85672972.

The previous prime is 89567213. The next prime is 89567227. The reversal of 89567221 is 12276598.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12276598 = 2 ⋅6138299.

It is a cyclic number.

It is not a de Polignac number, because 89567221 - 2³ = 89567213 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89567227) 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, 1947091 + ... + 1947136.

It is an arithmetic number, because the mean of its divisors is an integer number (23365368).

Almost surely, 2^89567221 is an apocalyptic number.

It is an amenable number.

89567221 is a deficient number, since it is larger than the sum of its proper divisors (3894251).

89567221 is a wasteful number, since it uses less digits than its factorization.

89567221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3894250.

The product of its digits is 60480, while the sum is 40.

The square root of 89567221 is about 9463.9960376154. The cubic root of 89567221 is about 447.4210024614.

The spelling of 89567221 in words is "eighty-nine million, five hundred sixty-seven thousand, two hundred twenty-one".