89387784 has 48 divisors (see below), whose sum is σ = 242751600. Its totient is φ = 29714784.

The previous prime is 89387783. The next prime is 89387797. The reversal of 89387784 is 48778398.

It is a self number, because there is not a number n which added to its sum of digits gives 89387784.

It is not an unprimeable number, because it can be changed into a prime (89387783) 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 11 ways as a sum of consecutive naturals, for example, 28687 + ... + 31649.

It is an arithmetic number, because the mean of its divisors is an integer number (5057325).

Almost surely, 2^89387784 is an apocalyptic number.

It is an amenable number.

89387784 is an abundant number, since it is smaller than the sum of its proper divisors (153363816).

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

89387784 is a wasteful number, since it uses less digits than its factorization.

89387784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3394 (or 3387 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 89387784 is about 9454.5113041341. The cubic root of 89387784 is about 447.1220182487.

The spelling of 89387784 in words is "eighty-nine million, three hundred eighty-seven thousand, seven hundred eighty-four".