74091671 has 8 divisors (see below), whose sum is σ = 77604864. Its totient is φ = 70602840.

The previous prime is 74091631. The next prime is 74091679. The reversal of 74091671 is 17619047.

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-74091671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74091679) 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, 290 + ... + 12176.

It is an arithmetic number, because the mean of its divisors is an integer number (9700608).

Almost surely, 2^74091671 is an apocalyptic number.

74091671 is a deficient number, since it is larger than the sum of its proper divisors (3513193).

74091671 is a wasteful number, since it uses less digits than its factorization.

74091671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12181.

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

The square root of 74091671 is about 8607.6518865484. The cubic root of 74091671 is about 420.0069367713.

The spelling of 74091671 in words is "seventy-four million, ninety-one thousand, six hundred seventy-one".