89527921 has 4 divisors (see below), whose sum is σ = 102317632. Its totient is φ = 76738212.

The previous prime is 89527883. The next prime is 89527939. The reversal of 89527921 is 12972598.

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 a cyclic number.

It is not a de Polignac number, because 89527921 - 2⁹ = 89527409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89527951) 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, 6394845 + ... + 6394858.

It is an arithmetic number, because the mean of its divisors is an integer number (25579408).

Almost surely, 2^89527921 is an apocalyptic number.

It is an amenable number.

89527921 is a deficient number, since it is larger than the sum of its proper divisors (12789711).

89527921 is a wasteful number, since it uses less digits than its factorization.

89527921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12789710.

The product of its digits is 90720, while the sum is 43.

The square root of 89527921 is about 9461.9195198437. The cubic root of 89527921 is about 447.3555536004.

The spelling of 89527921 in words is "eighty-nine million, five hundred twenty-seven thousand, nine hundred twenty-one".