89958081 has 4 divisors (see below), whose sum is σ = 119944112. Its totient is φ = 59972052.

The previous prime is 89958079. The next prime is 89958109. The reversal of 89958081 is 18085998.

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 not a de Polignac number, because 89958081 - 2¹ = 89958079 is a prime.

It is a super-2 number, since 2×89958081² = 16184912674405122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89958081.

It is not an unprimeable number, because it can be changed into a prime (89958181) 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, 14993011 + ... + 14993016.

It is an arithmetic number, because the mean of its divisors is an integer number (29986028).

Almost surely, 2^89958081 is an apocalyptic number.

It is an amenable number.

89958081 is a deficient number, since it is larger than the sum of its proper divisors (29986031).

89958081 is a wasteful number, since it uses less digits than its factorization.

89958081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29986030.

The product of its (nonzero) digits is 207360, while the sum is 48.

The square root of 89958081 is about 9484.6233979004. The cubic root of 89958081 is about 448.0708875525.

The spelling of 89958081 in words is "eighty-nine million, nine hundred fifty-eight thousand, eighty-one".