74273423 has 4 divisors (see below), whose sum is σ = 84883920. Its totient is φ = 63662928.

The previous prime is 74273387. The next prime is 74273447. The reversal of 74273423 is 32437247.

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

It is not a de Polignac number, because 74273423 - 2⁶ = 74273359 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 74273423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74273473) 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, 5305238 + ... + 5305251.

It is an arithmetic number, because the mean of its divisors is an integer number (21220980).

Almost surely, 2^74273423 is an apocalyptic number.

74273423 is a deficient number, since it is larger than the sum of its proper divisors (10610497).

74273423 is a wasteful number, since it uses less digits than its factorization.

74273423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10610496.

The product of its digits is 28224, while the sum is 32.

The square root of 74273423 is about 8618.2030029467. The cubic root of 74273423 is about 420.3500916973.

The spelling of 74273423 in words is "seventy-four million, two hundred seventy-three thousand, four hundred twenty-three".