74393606 has 16 divisors (see below), whose sum is σ = 130979616. Its totient is φ = 31021056.

The previous prime is 74393597. The next prime is 74393611. The reversal of 74393606 is 60639347.

It is a happy number.

It is a super-2 number, since 2×74393606² = 11068817227366472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74393606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71291 + ... + 72326.

It is an arithmetic number, because the mean of its divisors is an integer number (8186226).

Almost surely, 2^74393606 is an apocalyptic number.

74393606 is a deficient number, since it is larger than the sum of its proper divisors (56586010).

74393606 is a wasteful number, since it uses less digits than its factorization.

74393606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143663.

The product of its (nonzero) digits is 81648, while the sum is 38.

The square root of 74393606 is about 8625.1728098630. The cubic root of 74393606 is about 420.5766945610.

It can be divided in two parts, 743 and 93606, that added together give a palindrome (94349).

The spelling of 74393606 in words is "seventy-four million, three hundred ninety-three thousand, six hundred six".