74485 has 4 divisors (see below), whose sum is σ = 89388. Its totient is φ = 59584.

The previous prime is 74471. The next prime is 74489. The reversal of 74485 is 58447.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58447 = 211 ⋅277.

It can be written as a sum of positive squares in 2 ways, for example, as 51076 + 23409 = 226^2 + 153^2 .

It is a cyclic number.

It is not a de Polignac number, because 74485 - 2⁵ = 74453 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 (74489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7444 + ... + 7453.

It is an arithmetic number, because the mean of its divisors is an integer number (22347).

2⁷⁴⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

74485 is a deficient number, since it is larger than the sum of its proper divisors (14903).

74485 is a wasteful number, since it uses less digits than its factorization.

74485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14902.

The product of its digits is 4480, while the sum is 28.

The square root of 74485 is about 272.9194020219. The cubic root of 74485 is about 42.0748852979.

The spelling of 74485 in words is "seventy-four thousand, four hundred eighty-five".