72726003 has 24 divisors (see below), whose sum is σ = 120646656. Its totient is φ = 41353200.

The previous prime is 72725971. The next prime is 72726007. The reversal of 72726003 is 30062727.

It is not a de Polignac number, because 72726003 - 2⁵ = 72725971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72726007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10558 + ... + 16028.

It is an arithmetic number, because the mean of its divisors is an integer number (5026944).

Almost surely, 2^72726003 is an apocalyptic number.

72726003 is a deficient number, since it is larger than the sum of its proper divisors (47920653).

72726003 is a wasteful number, since it uses less digits than its factorization.

72726003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5695 (or 5692 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 72726003 is about 8527.9542095394. The cubic root of 72726003 is about 417.4103753019.

The spelling of 72726003 in words is "seventy-two million, seven hundred twenty-six thousand, three".