74604739 has 4 divisors (see below), whose sum is σ = 81387000. Its totient is φ = 67822480.

The previous prime is 74604727. The next prime is 74604749. The reversal of 74604739 is 93740647.

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

It is not a de Polignac number, because 74604739 - 2¹⁹ = 74080451 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74604749) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3391114 + ... + 3391135.

It is an arithmetic number, because the mean of its divisors is an integer number (20346750).

Almost surely, 2^74604739 is an apocalyptic number.

74604739 is a deficient number, since it is larger than the sum of its proper divisors (6782261).

74604739 is a wasteful number, since it uses less digits than its factorization.

74604739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6782260.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 74604739 is about 8637.4034871598. The cubic root of 74604739 is about 420.9741917479.

The spelling of 74604739 in words is "seventy-four million, six hundred four thousand, seven hundred thirty-nine".