73044289 has 2 divisors, whose sum is σ = 73044290. Its totient is φ = 73044288.

The previous prime is 73044241. The next prime is 73044313. The reversal of 73044289 is 98244037.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42706225 + 30338064 = 6535^2 + 5508^2 .

It is a cyclic number.

It is not a de Polignac number, because 73044289 - 2¹⁹ = 72520001 is a prime.

It is not a weakly prime, because it can be changed into another prime (73044089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36522144 + 36522145.

It is an arithmetic number, because the mean of its divisors is an integer number (36522145).

Almost surely, 2^73044289 is an apocalyptic number.

It is an amenable number.

73044289 is a deficient number, since it is larger than the sum of its proper divisors (1).

73044289 is an equidigital number, since it uses as much as digits as its factorization.

73044289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 73044289 is about 8546.5951700078. The cubic root of 73044289 is about 418.0184225300.

The spelling of 73044289 in words is "seventy-three million, forty-four thousand, two hundred eighty-nine".