74741623 has 4 divisors (see below), whose sum is σ = 81536328. Its totient is φ = 67946920.

The previous prime is 74741599. The next prime is 74741633. The reversal of 74741623 is 32614747.

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 74741623 - 2²¹ = 72644471 is a prime.

It is a super-3 number, since 3×74741623³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74741633) 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, 3397336 + ... + 3397357.

It is an arithmetic number, because the mean of its divisors is an integer number (20384082).

Almost surely, 2^74741623 is an apocalyptic number.

74741623 is a deficient number, since it is larger than the sum of its proper divisors (6794705).

74741623 is a wasteful number, since it uses less digits than its factorization.

74741623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6794704.

The product of its digits is 28224, while the sum is 34.

The square root of 74741623 is about 8645.3237649032. The cubic root of 74741623 is about 421.2315008004.

The spelling of 74741623 in words is "seventy-four million, seven hundred forty-one thousand, six hundred twenty-three".