74690171 has 4 divisors (see below), whose sum is σ = 74715600. Its totient is φ = 74664744.

The previous prime is 74690117. The next prime is 74690201. The reversal of 74690171 is 17109647.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17109647 = 197 ⋅86851.

It is a cyclic number.

It is not a de Polignac number, because 74690171 - 2⁶ = 74690107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74690101) 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, 7631 + ... + 14408.

It is an arithmetic number, because the mean of its divisors is an integer number (18678900).

Almost surely, 2^74690171 is an apocalyptic number.

74690171 is a deficient number, since it is larger than the sum of its proper divisors (25429).

74690171 is a wasteful number, since it uses less digits than its factorization.

74690171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25428.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 74690171 is about 8642.3475398760. The cubic root of 74690171 is about 421.1348202741.

The spelling of 74690171 in words is "seventy-four million, six hundred ninety thousand, one hundred seventy-one".