72104743 has 2 divisors, whose sum is σ = 72104744. Its totient is φ = 72104742.

The previous prime is 72104741. The next prime is 72104761. The reversal of 72104743 is 34740127.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72104743 - 2¹ = 72104741 is a prime.

Together with 72104741, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72104741) 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, 36052371 + 36052372.

It is an arithmetic number, because the mean of its divisors is an integer number (36052372).

Almost surely, 2^72104743 is an apocalyptic number.

72104743 is a deficient number, since it is larger than the sum of its proper divisors (1).

72104743 is an equidigital number, since it uses as much as digits as its factorization.

72104743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 72104743 is about 8491.4511716196. The cubic root of 72104743 is about 416.2184022524.

The spelling of 72104743 in words is "seventy-two million, one hundred four thousand, seven hundred forty-three".