74027543 has 4 divisors (see below), whose sum is σ = 74682768. Its totient is φ = 73372320.

The previous prime is 74027533. The next prime is 74027561. The reversal of 74027543 is 34572047.

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 74027543 - 2²⁰ = 72978967 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 (74027533) 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, 327443 + ... + 327668.

It is an arithmetic number, because the mean of its divisors is an integer number (18670692).

Almost surely, 2^74027543 is an apocalyptic number.

74027543 is a deficient number, since it is larger than the sum of its proper divisors (655225).

74027543 is a wasteful number, since it uses less digits than its factorization.

74027543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655224.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 74027543 is about 8603.9260224621. The cubic root of 74027543 is about 419.8857266589.

The spelling of 74027543 in words is "seventy-four million, twenty-seven thousand, five hundred forty-three".