88220889 has 12 divisors (see below), whose sum is σ = 130538772. Its totient is φ = 57379200.

The previous prime is 88220861. The next prime is 88220903. The reversal of 88220889 is 98802288.

It can be written as a sum of positive squares in 2 ways, for example, as 32867289 + 55353600 = 5733^2 + 7440^2 .

It is not a de Polignac number, because 88220889 - 2¹³ = 88212697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (88220809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119172 + ... + 119909.

It is an arithmetic number, because the mean of its divisors is an integer number (10878231).

Almost surely, 2^88220889 is an apocalyptic number.

It is an amenable number.

88220889 is a deficient number, since it is larger than the sum of its proper divisors (42317883).

88220889 is a wasteful number, since it uses less digits than its factorization.

88220889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239128 (or 239125 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The square root of 88220889 is about 9392.5975640395. The cubic root of 88220889 is about 445.1678683252.

The spelling of 88220889 in words is "eighty-eight million, two hundred twenty thousand, eight hundred eighty-nine".