54786 has 16 divisors (see below), whose sum is σ = 114624. Its totient is φ = 17424.

The previous prime is 54779. The next prime is 54787. The reversal of 54786 is 68745.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54787) by changing a digit.

54786 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61 + ... + 336.

It is an arithmetic number, because the mean of its divisors is an integer number (7164).

2⁵⁴⁷⁸⁶ is an apocalyptic number.

54786 is an abundant number, since it is smaller than the sum of its proper divisors (59838).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57312).

54786 is a wasteful number, since it uses less digits than its factorization.

54786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425.

The product of its digits is 6720, while the sum is 30.

The square root of 54786 is about 234.0640937863. The cubic root of 54786 is about 37.9801373573.

Subtracting from 54786 its sum of digits (30), we obtain a square (54756 = 234²).

The spelling of 54786 in words is "fifty-four thousand, seven hundred eighty-six".