89570085 has 32 divisors (see below), whose sum is σ = 164574720. Its totient is φ = 41140800.

The previous prime is 89570077. The next prime is 89570087. The reversal of 89570085 is 58007598.

It is not a de Polignac number, because 89570085 - 2³ = 89570077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89570087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11151 + ... + 17420.

It is an arithmetic number, because the mean of its divisors is an integer number (5142960).

Almost surely, 2^89570085 is an apocalyptic number.

It is an amenable number.

89570085 is a deficient number, since it is larger than the sum of its proper divisors (75004635).

89570085 is a wasteful number, since it uses less digits than its factorization.

89570085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28609.

The product of its (nonzero) digits is 100800, while the sum is 42.

The square root of 89570085 is about 9464.1473466974. The cubic root of 89570085 is about 447.4257713195.

The spelling of 89570085 in words is "eighty-nine million, five hundred seventy thousand, eighty-five".