53786784 has 48 divisors (see below), whose sum is σ = 141970752. Its totient is φ = 17829888.

The previous prime is 53786783. The next prime is 53786801. The reversal of 53786784 is 48768735.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (53786783) 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, 17077 + ... + 19979.

It is an arithmetic number, because the mean of its divisors is an integer number (2957724).

Almost surely, 2^53786784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53786784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70985376).

53786784 is an abundant number, since it is smaller than the sum of its proper divisors (88183968).

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

53786784 is a wasteful number, since it uses less digits than its factorization.

53786784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109 (or 3101 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 48.

The square root of 53786784 is about 7333.9473682322. The cubic root of 53786784 is about 377.4781859535.

The spelling of 53786784 in words is "fifty-three million, seven hundred eighty-six thousand, seven hundred eighty-four".