73003573 has 2 divisors, whose sum is σ = 73003574. Its totient is φ = 73003572.

The previous prime is 73003547. The next prime is 73003583. The reversal of 73003573 is 37530037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70257924 + 2745649 = 8382^2 + 1657^2 .

It is an emirp because it is prime and its reverse (37530037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73003573 - 2⁹ = 73003061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73003583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36501786 + 36501787.

It is an arithmetic number, because the mean of its divisors is an integer number (36501787).

Almost surely, 2^73003573 is an apocalyptic number.

It is an amenable number.

73003573 is a deficient number, since it is larger than the sum of its proper divisors (1).

73003573 is an equidigital number, since it uses as much as digits as its factorization.

73003573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6615, while the sum is 28.

The square root of 73003573 is about 8544.2128367685. The cubic root of 73003573 is about 417.9407381474.

The spelling of 73003573 in words is "seventy-three million, three thousand, five hundred seventy-three".