88640023 has 4 divisors (see below), whose sum is σ = 93854160. Its totient is φ = 83425888.

The previous prime is 88640017. The next prime is 88640029. The reversal of 88640023 is 32004688.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (88640017) and next prime (88640029).

It is a cyclic number.

It is not a de Polignac number, because 88640023 - 2¹⁷ = 88508951 is a prime.

It is a Smith number, since the sum of its digits (31) 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 (88640029) 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 3 ways as a sum of consecutive naturals, for example, 2607043 + ... + 2607076.

It is an arithmetic number, because the mean of its divisors is an integer number (23463540).

Almost surely, 2^88640023 is an apocalyptic number.

88640023 is a deficient number, since it is larger than the sum of its proper divisors (5214137).

88640023 is a wasteful number, since it uses less digits than its factorization.

88640023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5214136.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 88640023 is about 9414.8830582222. The cubic root of 88640023 is about 445.8717465218.

The spelling of 88640023 in words is "eighty-eight million, six hundred forty thousand, twenty-three".