74864071 has 4 divisors (see below), whose sum is σ = 74884144. Its totient is φ = 74844000.

The previous prime is 74864063. The next prime is 74864077. The reversal of 74864071 is 17046847.

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

It is a cyclic number.

It is not a de Polignac number, because 74864071 - 2³ = 74864063 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 74864071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74864077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2610 + ... + 12511.

It is an arithmetic number, because the mean of its divisors is an integer number (18721036).

Almost surely, 2^74864071 is an apocalyptic number.

74864071 is a deficient number, since it is larger than the sum of its proper divisors (20073).

74864071 is a wasteful number, since it uses less digits than its factorization.

74864071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20072.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 74864071 is about 8652.4026143032. The cubic root of 74864071 is about 421.4614075617.

The spelling of 74864071 in words is "seventy-four million, eight hundred sixty-four thousand, seventy-one".