89061818 has 8 divisors (see below), whose sum is σ = 133796820. Its totient is φ = 44462880.

The previous prime is 89061809. The next prime is 89061821. The reversal of 89061818 is 81816098.

It can be written as a sum of positive squares in 2 ways, for example, as 84953089 + 4108729 = 9217^2 + 2027^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32363 + ... + 35006.

Almost surely, 2^89061818 is an apocalyptic number.

89061818 is a deficient number, since it is larger than the sum of its proper divisors (44735002).

89061818 is a wasteful number, since it uses less digits than its factorization.

89061818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68032.

The product of its (nonzero) digits is 27648, while the sum is 41.

The square root of 89061818 is about 9437.2569107766. The cubic root of 89061818 is about 446.5778570247.

The spelling of 89061818 in words is "eighty-nine million, sixty-one thousand, eight hundred eighteen".