72443303 has 2 divisors, whose sum is σ = 72443304. Its totient is φ = 72443302.

The previous prime is 72443297. The next prime is 72443321. The reversal of 72443303 is 30334427.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72443303 - 2²⁰ = 71394727 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72443803) 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 as a sum of consecutive naturals, namely, 36221651 + 36221652.

It is an arithmetic number, because the mean of its divisors is an integer number (36221652).

Almost surely, 2^72443303 is an apocalyptic number.

72443303 is a deficient number, since it is larger than the sum of its proper divisors (1).

72443303 is an equidigital number, since it uses as much as digits as its factorization.

72443303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 26.

The square root of 72443303 is about 8511.3631693167. The cubic root of 72443303 is about 416.8688214422.

The spelling of 72443303 in words is "seventy-two million, four hundred forty-three thousand, three hundred three".