89579509 has 8 divisors (see below), whose sum is σ = 96301440. Its totient is φ = 83058336.

The previous prime is 89579489. The next prime is 89579527. The reversal of 89579509 is 90597598.

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

It is a cyclic number.

It is not a de Polignac number, because 89579509 - 2¹⁹ = 89055221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89579569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49264 + ... + 51049.

It is an arithmetic number, because the mean of its divisors is an integer number (12037680).

Almost surely, 2^89579509 is an apocalyptic number.

It is an amenable number.

89579509 is a deficient number, since it is larger than the sum of its proper divisors (6721931).

89579509 is a wasteful number, since it uses less digits than its factorization.

89579509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100379.

The product of its (nonzero) digits is 1020600, while the sum is 52.

The square root of 89579509 is about 9464.6452125793. The cubic root of 89579509 is about 447.4414625427.

The spelling of 89579509 in words is "eighty-nine million, five hundred seventy-nine thousand, five hundred nine".