74249179 has 4 divisors (see below), whose sum is σ = 74269800. Its totient is φ = 74228560.

The previous prime is 74249171. The next prime is 74249191. The reversal of 74249179 is 97194247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97194247 = 281 ⋅345887.

It is a cyclic number.

It is not a de Polignac number, because 74249179 - 2³ = 74249171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74249171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3337 + ... + 12634.

It is an arithmetic number, because the mean of its divisors is an integer number (18567450).

Almost surely, 2^74249179 is an apocalyptic number.

74249179 is a deficient number, since it is larger than the sum of its proper divisors (20621).

74249179 is a wasteful number, since it uses less digits than its factorization.

74249179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20620.

The product of its digits is 127008, while the sum is 43.

The square root of 74249179 is about 8616.7963304235. The cubic root of 74249179 is about 420.3043504517.

The spelling of 74249179 in words is "seventy-four million, two hundred forty-nine thousand, one hundred seventy-nine".