88681081 has 4 divisors (see below), whose sum is σ = 88712064. Its totient is φ = 88650100.

The previous prime is 88681063. The next prime is 88681091. The reversal of 88681081 is 18018688.

It is the 3845-th star number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 88681081 - 2¹⁷ = 88550009 is a prime.

It is a super-2 number, since 2×88681081² = 15728668254657122, which contains 22 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 not an unprimeable number, because it can be changed into a prime (88681091) 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, 10705 + ... + 17086.

It is an arithmetic number, because the mean of its divisors is an integer number (22178016).

Almost surely, 2^88681081 is an apocalyptic number.

It is an amenable number.

88681081 is a deficient number, since it is larger than the sum of its proper divisors (30983).

88681081 is a wasteful number, since it uses less digits than its factorization.

88681081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30982.

The product of its (nonzero) digits is 24576, while the sum is 40.

The square root of 88681081 is about 9417.0632895824. The cubic root of 88681081 is about 445.9405783946.

The spelling of 88681081 in words is "eighty-eight million, six hundred eighty-one thousand, eighty-one".