73656 has 64 divisors (see below), whose sum is σ = 230400. Its totient is φ = 21600.

The previous prime is 73651. The next prime is 73673. The reversal of 73656 is 65637.

73656 is a `hidden beast` number, since 7 + 3 + 656 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 73656.

It is not an unprimeable number, because it can be changed into a prime (73651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2361 + ... + 2391.

It is an arithmetic number, because the mean of its divisors is an integer number (3600).

2⁷³⁶⁵⁶ 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 73656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115200).

73656 is an abundant number, since it is smaller than the sum of its proper divisors (156744).

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

73656 is a wasteful number, since it uses less digits than its factorization.

73656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57 (or 47 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 73656 is about 271.3963890696. The cubic root of 73656 is about 41.9182081669.

It can be divided in two parts, 73 and 656, that added together give a 6-th power (729 = 3⁶).

The spelling of 73656 in words is "seventy-three thousand, six hundred fifty-six".