73703573 has 2 divisors, whose sum is σ = 73703574. Its totient is φ = 73703572.

The previous prime is 73703521. The next prime is 73703621. The reversal of 73703573 is 37530737.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55920484 + 17783089 = 7478^2 + 4217^2 .

It is a cyclic number.

It is not a de Polignac number, because 73703573 - 2¹⁰ = 73702549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73703503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36851786 + 36851787.

It is an arithmetic number, because the mean of its divisors is an integer number (36851787).

Almost surely, 2^73703573 is an apocalyptic number.

It is an amenable number.

73703573 is a deficient number, since it is larger than the sum of its proper divisors (1).

73703573 is an equidigital number, since it uses as much as digits as its factorization.

73703573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46305, while the sum is 35.

The square root of 73703573 is about 8585.0785086684. The cubic root of 73703573 is about 419.2723094730.

The spelling of 73703573 in words is "seventy-three million, seven hundred three thousand, five hundred seventy-three".