73445579 has 2 divisors, whose sum is σ = 73445580. Its totient is φ = 73445578.

The previous prime is 73445573. The next prime is 73445599. The reversal of 73445579 is 97554437.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73445579 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73445573) 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, 36722789 + 36722790.

It is an arithmetic number, because the mean of its divisors is an integer number (36722790).

Almost surely, 2^73445579 is an apocalyptic number.

73445579 is a deficient number, since it is larger than the sum of its proper divisors (1).

73445579 is an equidigital number, since it uses as much as digits as its factorization.

73445579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 529200, while the sum is 44.

The square root of 73445579 is about 8570.0396148443. The cubic root of 73445579 is about 418.7825267969.

The spelling of 73445579 in words is "seventy-three million, four hundred forty-five thousand, five hundred seventy-nine".