74672171 has 4 divisors (see below), whose sum is σ = 85339632. Its totient is φ = 64004712.

The previous prime is 74672141. The next prime is 74672201. The reversal of 74672171 is 17127647.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (74672141) and next prime (74672201).

It is a cyclic number.

It is not a de Polignac number, because 74672171 - 2⁶ = 74672107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74672141) 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 3 ways as a sum of consecutive naturals, for example, 5333720 + ... + 5333733.

It is an arithmetic number, because the mean of its divisors is an integer number (21334908).

Almost surely, 2^74672171 is an apocalyptic number.

74672171 is a deficient number, since it is larger than the sum of its proper divisors (10667461).

74672171 is a wasteful number, since it uses less digits than its factorization.

74672171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10667460.

The product of its digits is 16464, while the sum is 35.

The square root of 74672171 is about 8641.3060934097. The cubic root of 74672171 is about 421.1009870147.

The spelling of 74672171 in words is "seventy-four million, six hundred seventy-two thousand, one hundred seventy-one".