89436446221 has 4 divisors (see below), whose sum is σ = 89438796000. Its totient is φ = 89434096444.

The previous prime is 89436446219. The next prime is 89436446227. The reversal of 89436446221 is 12264463498.

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 a cyclic number.

It is not a de Polignac number, because 89436446221 - 2¹ = 89436446219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89436446227) 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, 1116841 + ... + 1194238.

It is an arithmetic number, because the mean of its divisors is an integer number (22359699000).

Almost surely, 2^89436446221 is an apocalyptic number.

It is an amenable number.

89436446221 is a deficient number, since it is larger than the sum of its proper divisors (2349779).

89436446221 is a wasteful number, since it uses less digits than its factorization.

89436446221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2349778.

The product of its digits is 1990656, while the sum is 49.

The spelling of 89436446221 in words is "eighty-nine billion, four hundred thirty-six million, four hundred forty-six thousand, two hundred twenty-one".