72707603 has 4 divisors (see below), whose sum is σ = 72726000. Its totient is φ = 72689208.

The previous prime is 72707599. The next prime is 72707629. The reversal of 72707603 is 30670727.

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

It is a cyclic number.

It is not a de Polignac number, because 72707603 - 2² = 72707599 is a prime.

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 72707603.

It is not an unprimeable number, because it can be changed into a prime (72707653) 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 3 ways as a sum of consecutive naturals, for example, 575 + ... + 12072.

It is an arithmetic number, because the mean of its divisors is an integer number (18181500).

Almost surely, 2^72707603 is an apocalyptic number.

72707603 is a deficient number, since it is larger than the sum of its proper divisors (18397).

72707603 is a wasteful number, since it uses less digits than its factorization.

72707603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18396.

The product of its (nonzero) digits is 12348, while the sum is 32.

The square root of 72707603 is about 8526.8753362530. The cubic root of 72707603 is about 417.3751701098.

The spelling of 72707603 in words is "seventy-two million, seven hundred seven thousand, six hundred three".