89520081 has 16 divisors (see below), whose sum is σ = 137739264. Its totient is φ = 50656464.

The previous prime is 89519999. The next prime is 89520083. The reversal of 89520081 is 18002598.

It is a happy number.

It is not a de Polignac number, because 89520081 - 2¹³ = 89511889 is a prime.

It is a super-2 number, since 2×89520081² = 16027689804493122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89520083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18531 + ... + 22856.

It is an arithmetic number, because the mean of its divisors is an integer number (8608704).

Almost surely, 2^89520081 is an apocalyptic number.

It is an amenable number.

89520081 is a deficient number, since it is larger than the sum of its proper divisors (48219183).

89520081 is a wasteful number, since it uses less digits than its factorization.

89520081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41500.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 89520081 is about 9461.5052185157. The cubic root of 89520081 is about 447.3424948440.

The spelling of 89520081 in words is "eighty-nine million, five hundred twenty thousand, eighty-one".