72603 has 8 divisors (see below), whose sum is σ = 107600. Its totient is φ = 48384.

The previous prime is 72577. The next prime is 72613. The reversal of 72603 is 30627.

72603 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 72603 - 2⁹ = 72091 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72613) 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, 1318 + ... + 1371.

It is an arithmetic number, because the mean of its divisors is an integer number (13450).

2⁷²⁶⁰³ is an apocalyptic number.

72603 is a deficient number, since it is larger than the sum of its proper divisors (34997).

72603 is a wasteful number, since it uses less digits than its factorization.

72603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2698 (or 2692 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 72603 is about 269.4494386708. The cubic root of 72603 is about 41.7174917560.

The spelling of 72603 in words is "seventy-two thousand, six hundred three".