39603 has 8 divisors (see below), whose sum is σ = 54208. Its totient is φ = 25704.

The previous prime is 39581. The next prime is 39607. The reversal of 39603 is 30693.

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

It is not a de Polignac number, because 39603 - 2¹² = 35507 is a prime.

It is a Lucas number.

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 39603.

It is not an unprimeable number, because it can be changed into a prime (39607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25 + ... + 282.

It is an arithmetic number, because the mean of its divisors is an integer number (6776).

2³⁹⁶⁰³ is an apocalyptic number.

39603 is a deficient number, since it is larger than the sum of its proper divisors (14605).

39603 is a wasteful number, since it uses less digits than its factorization.

39603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 39603 is about 199.0050250622. The cubic root of 39603 is about 34.0859991313.

The spelling of 39603 in words is "thirty-nine thousand, six hundred three".