88535681 has 4 divisors (see below), whose sum is σ = 95346132. Its totient is φ = 81725232.

The previous prime is 88535669. The next prime is 88535693. The reversal of 88535681 is 18653588.

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 (88535669) and next prime (88535693).

It can be written as a sum of positive squares in 2 ways, for example, as 12567025 + 75968656 = 3545^2 + 8716^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88535681 is a prime.

It is a super-2 number, since 2×88535681² = 15677133620267522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88535621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3405206 + ... + 3405231.

It is an arithmetic number, because the mean of its divisors is an integer number (23836533).

Almost surely, 2^88535681 is an apocalyptic number.

It is an amenable number.

88535681 is a deficient number, since it is larger than the sum of its proper divisors (6810451).

88535681 is a wasteful number, since it uses less digits than its factorization.

88535681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6810450.

The product of its digits is 230400, while the sum is 44.

The square root of 88535681 is about 9409.3400937579. The cubic root of 88535681 is about 445.6967261982.

The spelling of 88535681 in words is "eighty-eight million, five hundred thirty-five thousand, six hundred eighty-one".