88665223 has 4 divisors (see below), whose sum is σ = 88691040. Its totient is φ = 88639408.

The previous prime is 88665221. The next prime is 88665263. The reversal of 88665223 is 32256688.

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 88665223 - 2¹ = 88665221 is a prime.

It is a super-3 number, since 3×88665223³ (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88665221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6790 + ... + 14947.

It is an arithmetic number, because the mean of its divisors is an integer number (22172760).

Almost surely, 2^88665223 is an apocalyptic number.

88665223 is a deficient number, since it is larger than the sum of its proper divisors (25817).

88665223 is a wasteful number, since it uses less digits than its factorization.

88665223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25816.

The product of its digits is 138240, while the sum is 40.

The square root of 88665223 is about 9416.2212697026. The cubic root of 88665223 is about 445.9139956963.

It can be divided in two parts, 88665 and 223, that added together give a palindrome (88888).

The spelling of 88665223 in words is "eighty-eight million, six hundred sixty-five thousand, two hundred twenty-three".