89565601 has 16 divisors (see below), whose sum is σ = 99403200. Its totient is φ = 80353728.

The previous prime is 89565583. The next prime is 89565643. The reversal of 89565601 is 10656598.

It is a cyclic number.

It is not a de Polignac number, because 89565601 - 2⁹ = 89565089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89565701) 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 15 ways as a sum of consecutive naturals, for example, 27670 + ... + 30736.

It is an arithmetic number, because the mean of its divisors is an integer number (6212700).

Almost surely, 2^89565601 is an apocalyptic number.

It is an amenable number.

89565601 is a deficient number, since it is larger than the sum of its proper divisors (9837599).

89565601 is a wasteful number, since it uses less digits than its factorization.

89565601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3168.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 89565601 is about 9463.9104497031. The cubic root of 89565601 is about 447.4183049478.

The spelling of 89565601 in words is "eighty-nine million, five hundred sixty-five thousand, six hundred one".