73730453 has 2 divisors, whose sum is σ = 73730454. Its totient is φ = 73730452.

The previous prime is 73730429. The next prime is 73730519. The reversal of 73730453 is 35403737.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72880369 + 850084 = 8537^2 + 922^2 .

It is a cyclic number.

It is not a de Polignac number, because 73730453 - 2⁸ = 73730197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73730413) 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, 36865226 + 36865227.

It is an arithmetic number, because the mean of its divisors is an integer number (36865227).

Almost surely, 2^73730453 is an apocalyptic number.

It is an amenable number.

73730453 is a deficient number, since it is larger than the sum of its proper divisors (1).

73730453 is an equidigital number, since it uses as much as digits as its factorization.

73730453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26460, while the sum is 32.

The square root of 73730453 is about 8586.6438728994. The cubic root of 73730453 is about 419.3232733970.

The spelling of 73730453 in words is "seventy-three million, seven hundred thirty thousand, four hundred fifty-three".