89527681 has 8 divisors (see below), whose sum is σ = 90714600. Its totient is φ = 88344960.

The previous prime is 89527667. The next prime is 89527733. The reversal of 89527681 is 18672598.

It can be written as a sum of positive squares in 4 ways, for example, as 6426225 + 83101456 = 2535^2 + 9116^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 89527681 - 2¹⁹ = 89003393 is a prime.

It is a super-2 number, since 2×89527681² = 16030411330475522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89527631) 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 7 ways as a sum of consecutive naturals, for example, 83215 + ... + 84283.

It is an arithmetic number, because the mean of its divisors is an integer number (11339325).

Almost surely, 2^89527681 is an apocalyptic number.

It is an amenable number.

89527681 is a deficient number, since it is larger than the sum of its proper divisors (1186919).

89527681 is a wasteful number, since it uses less digits than its factorization.

89527681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099.

The product of its digits is 241920, while the sum is 46.

The square root of 89527681 is about 9461.9068374192. The cubic root of 89527681 is about 447.3551538539.

It can be divided in two parts, 89 and 527681, that multiplied together give a square (46963609 = 6853²).

The spelling of 89527681 in words is "eighty-nine million, five hundred twenty-seven thousand, six hundred eighty-one".