74223493 has 4 divisors (see below), whose sum is σ = 74600460. Its totient is φ = 73846528.

The previous prime is 74223491. The next prime is 74223503. The reversal of 74223493 is 39432247.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 35497764 + 38725729 = 5958^2 + 6223^2 .

It is a cyclic number.

It is not a de Polignac number, because 74223493 - 2¹ = 74223491 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 (74223491) 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 3 ways as a sum of consecutive naturals, for example, 188188 + ... + 188581.

It is an arithmetic number, because the mean of its divisors is an integer number (18650115).

Almost surely, 2^74223493 is an apocalyptic number.

It is an amenable number.

74223493 is a deficient number, since it is larger than the sum of its proper divisors (376967).

74223493 is a wasteful number, since it uses less digits than its factorization.

74223493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376966.

The product of its digits is 36288, while the sum is 34.

The square root of 74223493 is about 8615.3057403670. The cubic root of 74223493 is about 420.2558777150.

The spelling of 74223493 in words is "seventy-four million, two hundred twenty-three thousand, four hundred ninety-three".