89285720 has 32 divisors (see below), whose sum is σ = 201715920. Its totient is φ = 35568000.

The previous prime is 89285689. The next prime is 89285723. The reversal of 89285720 is 2758298.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89285723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5594 + ... + 14486.

Almost surely, 2^89285720 is an apocalyptic number.

It is an amenable number.

89285720 is an abundant number, since it is smaller than the sum of its proper divisors (112430200).

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

89285720 is a wasteful number, since it uses less digits than its factorization.

89285720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9155 (or 9151 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 89285720 is about 9449.1121276023. The cubic root of 89285720 is about 446.9517770833.

The spelling of 89285720 in words is "eighty-nine million, two hundred eighty-five thousand, seven hundred twenty".