88000081 has 4 divisors (see below), whose sum is σ = 94769332. Its totient is φ = 81230832.

The previous prime is 88000069. The next prime is 88000091. The reversal of 88000081 is 18000088.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 54464400 + 33535681 = 7380^2 + 5791^2 .

It is a cyclic number.

It is not a de Polignac number, because 88000081 - 2⁷ = 87999953 is a prime.

It is a super-2 number, since 2×88000081² = 15488028512013122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88000051) 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, 3384606 + ... + 3384631.

It is an arithmetic number, because the mean of its divisors is an integer number (23692333).

Almost surely, 2^88000081 is an apocalyptic number.

It is an amenable number.

88000081 is a deficient number, since it is larger than the sum of its proper divisors (6769251).

88000081 is a wasteful number, since it uses less digits than its factorization.

88000081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6769250.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 88000081 is about 9380.8358369604. The cubic root of 88000081 is about 444.7961545853.

The spelling of 88000081 in words is "eighty-eight million, eighty-one", and thus it is an aban number and an uban number.