89488681 has 4 divisors (see below), whose sum is σ = 91907332. Its totient is φ = 87070032.

The previous prime is 89488667. The next prime is 89488717. The reversal of 89488681 is 18688498.

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 40208281 + 49280400 = 6341^2 + 7020^2 .

It is a cyclic number.

It is not a de Polignac number, because 89488681 - 2⁵ = 89488649 is a prime.

It is a super-2 number, since 2×89488681² = 16016448054239522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89488631) 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, 1209270 + ... + 1209343.

It is an arithmetic number, because the mean of its divisors is an integer number (22976833).

Almost surely, 2^89488681 is an apocalyptic number.

It is an amenable number.

89488681 is a deficient number, since it is larger than the sum of its proper divisors (2418651).

89488681 is a wasteful number, since it uses less digits than its factorization.

89488681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418650.

The product of its digits is 884736, while the sum is 52.

The square root of 89488681 is about 9459.8457175580. The cubic root of 89488681 is about 447.2901855490.

The spelling of 89488681 in words is "eighty-nine million, four hundred eighty-eight thousand, six hundred eighty-one".