74273 has 6 divisors (see below), whose sum is σ = 79206. Its totient is φ = 69632.

The previous prime is 74257. The next prime is 74279. The reversal of 74273 is 37247.

74273 is nontrivially palindromic in base 4 and base 16.

It can be written as a sum of positive squares in 3 ways, for example, as 53824 + 20449 = 232^2 + 143^2 .

It is not a de Polignac number, because 74273 - 2⁴ = 74257 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 161 + ... + 417.

It is an arithmetic number, because the mean of its divisors is an integer number (13201).

2⁷⁴²⁷³ is an apocalyptic number.

It is an amenable number.

74273 is a deficient number, since it is larger than the sum of its proper divisors (4933).

74273 is a wasteful number, since it uses less digits than its factorization.

74273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 274 counting only the distinct ones).

The product of its digits is 1176, while the sum is 23.

The square root of 74273 is about 272.5307322120. The cubic root of 74273 is about 42.0349293707.

It can be divided in two parts, 74 and 273, that multiplied together give a palindrome (20202).

The spelling of 74273 in words is "seventy-four thousand, two hundred seventy-three", and thus it is an iban number.