73044073 has 2 divisors, whose sum is σ = 73044074. Its totient is φ = 73044072.

The previous prime is 73044071. The next prime is 73044089. The reversal of 73044073 is 37044037.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70509609 + 2534464 = 8397^2 + 1592^2 .

It is a cyclic number.

It is not a de Polignac number, because 73044073 - 2¹ = 73044071 is a prime.

Together with 73044071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (73044071) 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 as a sum of consecutive naturals, namely, 36522036 + 36522037.

It is an arithmetic number, because the mean of its divisors is an integer number (36522037).

Almost surely, 2^73044073 is an apocalyptic number.

It is an amenable number.

73044073 is a deficient number, since it is larger than the sum of its proper divisors (1).

73044073 is an equidigital number, since it uses as much as digits as its factorization.

73044073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 73044073 is about 8546.5825333872. The cubic root of 73044073 is about 418.0180104874.

The spelling of 73044073 in words is "seventy-three million, forty-four thousand, seventy-three".