88665 has 16 divisors (see below), whose sum is σ = 148608. Its totient is φ = 45056.

The previous prime is 88663. The next prime is 88667. The reversal of 88665 is 56688.

It is an interprime number because it is at equal distance from previous prime (88663) and next prime (88667).

It is a cyclic number.

It is not a de Polignac number, because 88665 - 2¹ = 88663 is a prime.

It is a super-2 number, since 2×88665² = 15722964450, which contains 22 as substring.

Its product of digits (11520) is a multiple of the sum of its prime divisors (288).

88665 is a lucky number.

It is a plaindrome in base 9.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (88661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217 + ... + 473.

It is an arithmetic number, because the mean of its divisors is an integer number (9288).

2⁸⁸⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

88665 is a deficient number, since it is larger than the sum of its proper divisors (59943).

88665 is a wasteful number, since it uses less digits than its factorization.

88665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288.

The product of its digits is 11520, while the sum is 33.

The square root of 88665 is about 297.7666871898. The cubic root of 88665 is about 44.5913621860.

The spelling of 88665 in words is "eighty-eight thousand, six hundred sixty-five".