89565140 has 36 divisors (see below), whose sum is σ = 218797236. Its totient is φ = 30707712.

The previous prime is 89565139. The next prime is 89565143. The reversal of 89565140 is 4156598.

It can be written as a sum of positive squares in 2 ways, for example, as 22259524 + 67305616 = 4718^2 + 8204^2 .

It is a junction number, because it is equal to n+sod(n) for n = 89565094 and 89565103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89565143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44717 + ... + 46676.

It is an arithmetic number, because the mean of its divisors is an integer number (6077701).

Almost surely, 2^89565140 is an apocalyptic number.

It is an amenable number.

89565140 is an abundant number, since it is smaller than the sum of its proper divisors (129232096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89565140 is a wasteful number, since it uses less digits than its factorization.

89565140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91416 (or 91407 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 89565140 is about 9463.8860939891. The cubic root of 89565140 is about 447.4175373160.

The spelling of 89565140 in words is "eighty-nine million, five hundred sixty-five thousand, one hundred forty".