73580389 has 2 divisors, whose sum is σ = 73580390. Its totient is φ = 73580388.

The previous prime is 73580357. The next prime is 73580393. The reversal of 73580389 is 98308537.

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., 71115489 + 2464900 = 8433^2 + 1570^2 .

It is a cyclic number.

It is not a de Polignac number, because 73580389 - 2⁵ = 73580357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73580189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36790194 + 36790195.

It is an arithmetic number, because the mean of its divisors is an integer number (36790195).

Almost surely, 2^73580389 is an apocalyptic number.

It is an amenable number.

73580389 is a deficient number, since it is larger than the sum of its proper divisors (1).

73580389 is an equidigital number, since it uses as much as digits as its factorization.

73580389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 73580389 is about 8577.9012001771. The cubic root of 73580389 is about 419.0385965133.

The spelling of 73580389 in words is "seventy-three million, five hundred eighty thousand, three hundred eighty-nine".