88640085 has 16 divisors (see below), whose sum is σ = 141951744. Its totient is φ = 47232192.

The previous prime is 88640051. The next prime is 88640087. The reversal of 88640085 is 58004688.

It is not a de Polignac number, because 88640085 - 2⁸ = 88639829 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88640087) 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 15 ways as a sum of consecutive naturals, for example, 21879 + ... + 25611.

It is an arithmetic number, because the mean of its divisors is an integer number (8871984).

Almost surely, 2^88640085 is an apocalyptic number.

It is an amenable number.

88640085 is a deficient number, since it is larger than the sum of its proper divisors (53311659).

88640085 is a wasteful number, since it uses less digits than its factorization.

88640085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5324.

The product of its (nonzero) digits is 61440, while the sum is 39.

The square root of 88640085 is about 9414.8863508807. The cubic root of 88640085 is about 445.8718504780.

The spelling of 88640085 in words is "eighty-eight million, six hundred forty thousand, eighty-five".