74291 has 4 divisors (see below), whose sum is σ = 84912. Its totient is φ = 63672.

The previous prime is 74287. The next prime is 74293. The reversal of 74291 is 19247.

74291 = 100² + 101² + ... + 106².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19247 = 19 ⋅1013.

It is not a de Polignac number, because 74291 - 2² = 74287 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (74293) 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, 5300 + ... + 5313.

It is an arithmetic number, because the mean of its divisors is an integer number (21228).

2⁷⁴²⁹¹ is an apocalyptic number.

74291 is a deficient number, since it is larger than the sum of its proper divisors (10621).

74291 is a wasteful number, since it uses less digits than its factorization.

74291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10620.

The product of its digits is 504, while the sum is 23.

The square root of 74291 is about 272.5637540100. The cubic root of 74291 is about 42.0383248065.

The spelling of 74291 in words is "seventy-four thousand, two hundred ninety-one".