72743003 has 4 divisors (see below), whose sum is σ = 73410480. Its totient is φ = 72075528.

The previous prime is 72742931. The next prime is 72743053. The reversal of 72743003 is 30034727.

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 72743003 - 2¹² = 72738907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72743053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333575 + ... + 333792.

It is an arithmetic number, because the mean of its divisors is an integer number (18352620).

Almost surely, 2^72743003 is an apocalyptic number.

72743003 is a deficient number, since it is larger than the sum of its proper divisors (667477).

72743003 is a wasteful number, since it uses less digits than its factorization.

72743003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667476.

The product of its (nonzero) digits is 3528, while the sum is 26.

The square root of 72743003 is about 8528.9508733490. The cubic root of 72743003 is about 417.4428965609.

The spelling of 72743003 in words is "seventy-two million, seven hundred forty-three thousand, three".