74321603 has 8 divisors (see below), whose sum is σ = 79643088. Its totient is φ = 69105664.

The previous prime is 74321563. The next prime is 74321609. The reversal of 74321603 is 30612347.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74321603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74321609) 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 7 ways as a sum of consecutive naturals, for example, 24926 + ... + 27747.

It is an arithmetic number, because the mean of its divisors is an integer number (9955386).

Almost surely, 2^74321603 is an apocalyptic number.

74321603 is a deficient number, since it is larger than the sum of its proper divisors (5321485).

74321603 is a wasteful number, since it uses less digits than its factorization.

74321603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52773.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 74321603 is about 8620.9977960791. The cubic root of 74321603 is about 420.4409635463.

The spelling of 74321603 in words is "seventy-four million, three hundred twenty-one thousand, six hundred three".