72372003 has 16 divisors (see below), whose sum is σ = 105470976. Its totient is φ = 43777440.

The previous prime is 72371989. The next prime is 72372017. The reversal of 72372003 is 30027327.

It is an interprime number because it is at equal distance from previous prime (72371989) and next prime (72372017).

It is not a de Polignac number, because 72372003 - 2⁴ = 72371987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72372803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18225 + ... + 21837.

It is an arithmetic number, because the mean of its divisors is an integer number (6591936).

Almost surely, 2^72372003 is an apocalyptic number.

72372003 is a deficient number, since it is larger than the sum of its proper divisors (33098973).

72372003 is a wasteful number, since it uses less digits than its factorization.

72372003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4234.

The product of its (nonzero) digits is 1764, while the sum is 24.

The square root of 72372003 is about 8507.1736199516. The cubic root of 72372003 is about 416.7320132888.

The spelling of 72372003 in words is "seventy-two million, three hundred seventy-two thousand, three".