74065 has 4 divisors (see below), whose sum is σ = 88884. Its totient is φ = 59248.

The previous prime is 74051. The next prime is 74071. The reversal of 74065 is 56047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56047 = 41 ⋅1367.

It can be written as a sum of positive squares in 2 ways, for example, as 24336 + 49729 = 156^2 + 223^2 .

It is a cyclic number.

It is not a de Polignac number, because 74065 - 2⁹ = 73553 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7402 + ... + 7411.

It is an arithmetic number, because the mean of its divisors is an integer number (22221).

2⁷⁴⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

74065 is a deficient number, since it is larger than the sum of its proper divisors (14819).

74065 is a wasteful number, since it uses less digits than its factorization.

74065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14818.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 74065 is about 272.1488563268. The cubic root of 74065 is about 41.9956533673.

The spelling of 74065 in words is "seventy-four thousand, sixty-five".