89855219 has 4 divisors (see below), whose sum is σ = 90937896. Its totient is φ = 88772544.

The previous prime is 89855191. The next prime is 89855221. The reversal of 89855219 is 91255898.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 89855219 - 2¹⁶ = 89789683 is a prime.

It is a super-2 number, since 2×89855219² = 16147920763075922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89855279) 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, 541214 + ... + 541379.

It is an arithmetic number, because the mean of its divisors is an integer number (22734474).

Almost surely, 2^89855219 is an apocalyptic number.

89855219 is a deficient number, since it is larger than the sum of its proper divisors (1082677).

89855219 is a wasteful number, since it uses less digits than its factorization.

89855219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082676.

The product of its digits is 259200, while the sum is 47.

The square root of 89855219 is about 9479.1992805300. The cubic root of 89855219 is about 447.9000411419.

The spelling of 89855219 in words is "eighty-nine million, eight hundred fifty-five thousand, two hundred nineteen".