74911 has 4 divisors (see below), whose sum is σ = 78192. Its totient is φ = 71632.

The previous prime is 74903. The next prime is 74923. The reversal of 74911 is 11947.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11947 = 13 ⋅919.

It is a cyclic number.

It is not a de Polignac number, because 74911 - 2³ = 74903 is a prime.

It is a super-2 number, since 2×74911² = 11223315842, which contains 22 as substring.

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.

74911 is a lucky number.

It is a plaindrome in base 8 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74941) 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, 1606 + ... + 1651.

It is an arithmetic number, because the mean of its divisors is an integer number (19548).

2⁷⁴⁹¹¹ is an apocalyptic number.

74911 is a deficient number, since it is larger than the sum of its proper divisors (3281).

74911 is a wasteful number, since it uses less digits than its factorization.

74911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3280.

The product of its digits is 252, while the sum is 22.

The square root of 74911 is about 273.6987394929. The cubic root of 74911 is about 42.1549454386.

The spelling of 74911 in words is "seventy-four thousand, nine hundred eleven".