74404823 has 4 divisors (see below), whose sum is σ = 74577888. Its totient is φ = 74231760.

The previous prime is 74404819. The next prime is 74404829. The reversal of 74404823 is 32840447.

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 74404823 - 2² = 74404819 is a prime.

It is a super-2 number, since 2×74404823² = 11072155371322658, which contains 22 as substring.

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 74404823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74404829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85886 + ... + 86747.

It is an arithmetic number, because the mean of its divisors is an integer number (18644472).

Almost surely, 2^74404823 is an apocalyptic number.

74404823 is a deficient number, since it is larger than the sum of its proper divisors (173065).

74404823 is a wasteful number, since it uses less digits than its factorization.

74404823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173064.

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 74404823 is about 8625.8230331952. The cubic root of 74404823 is about 420.5978315554.

The spelling of 74404823 in words is "seventy-four million, four hundred four thousand, eight hundred twenty-three".