74566 has 8 divisors (see below), whose sum is σ = 116784. Its totient is φ = 35640.

The previous prime is 74561. The next prime is 74567. The reversal of 74566 is 66547.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 765 + ... + 856.

It is an arithmetic number, because the mean of its divisors is an integer number (14598).

2⁷⁴⁵⁶⁶ is an apocalyptic number.

74566 is a deficient number, since it is larger than the sum of its proper divisors (42218).

74566 is a wasteful number, since it uses less digits than its factorization.

74566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646.

The product of its digits is 5040, while the sum is 28.

The square root of 74566 is about 273.0677571593. The cubic root of 74566 is about 42.0901314596.

The spelling of 74566 in words is "seventy-four thousand, five hundred sixty-six".