89420218 has 4 divisors (see below), whose sum is σ = 134130330. Its totient is φ = 44710108.

The previous prime is 89420209. The next prime is 89420239. The reversal of 89420218 is 81202498.

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

It can be written as a sum of positive squares in only one way, i.e., 89359209 + 61009 = 9453^2 + 247^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22355053 + ... + 22355056.

Almost surely, 2^89420218 is an apocalyptic number.

89420218 is a deficient number, since it is larger than the sum of its proper divisors (44710112).

89420218 is a wasteful number, since it uses less digits than its factorization.

89420218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44710111.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 89420218 is about 9456.2264143790. The cubic root of 89420218 is about 447.1760905214.

It can be divided in two parts, 894 and 20218, that added together give a palindrome (21112).

The spelling of 89420218 in words is "eighty-nine million, four hundred twenty thousand, two hundred eighteen".