74534 has 8 divisors (see below), whose sum is σ = 113400. Its totient is φ = 36736.

The previous prime is 74531. The next prime is 74551. The reversal of 74534 is 43547.

74534 = 135² + 136² + ... + 138².

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74531) 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, 59 + ... + 390.

It is an arithmetic number, because the mean of its divisors is an integer number (14175).

2⁷⁴⁵³⁴ is an apocalyptic number.

74534 is a deficient number, since it is larger than the sum of its proper divisors (38866).

74534 is a wasteful number, since it uses less digits than its factorization.

74534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534.

The product of its digits is 1680, while the sum is 23.

The square root of 74534 is about 273.0091573556. The cubic root of 74534 is about 42.0841096046.

The spelling of 74534 in words is "seventy-four thousand, five hundred thirty-four".