74072117 has 16 divisors (see below), whose sum is σ = 88161024. Its totient is φ = 60912000.

The previous prime is 74072107. The next prime is 74072123. The reversal of 74072117 is 71127047.

It is a cyclic number.

It is not a de Polignac number, because 74072117 - 2¹⁰ = 74071093 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 74072117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74072107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15392 + ... + 19622.

It is an arithmetic number, because the mean of its divisors is an integer number (5510064).

Almost surely, 2^74072117 is an apocalyptic number.

It is an amenable number.

74072117 is a deficient number, since it is larger than the sum of its proper divisors (14088907).

74072117 is a wasteful number, since it uses less digits than its factorization.

74072117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4340.

The product of its (nonzero) digits is 2744, while the sum is 29.

The square root of 74072117 is about 8606.5159617583. The cubic root of 74072117 is about 419.9699846275.

The spelling of 74072117 in words is "seventy-four million, seventy-two thousand, one hundred seventeen".