74222171 has 8 divisors (see below), whose sum is σ = 76380480. Its totient is φ = 72083592.

The previous prime is 74222147. The next prime is 74222191. The reversal of 74222171 is 17122247.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74222171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74222171.

It is not an unprimeable number, because it can be changed into a prime (74222191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2876 + ... + 12518.

It is an arithmetic number, because the mean of its divisors is an integer number (9547560).

Almost surely, 2^74222171 is an apocalyptic number.

74222171 is a deficient number, since it is larger than the sum of its proper divisors (2158309).

74222171 is a wasteful number, since it uses less digits than its factorization.

74222171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9865.

The product of its digits is 1568, while the sum is 26.

The square root of 74222171 is about 8615.2290161086. The cubic root of 74222171 is about 420.2533826309.

The spelling of 74222171 in words is "seventy-four million, two hundred twenty-two thousand, one hundred seventy-one".