73733729 has 2 divisors, whose sum is σ = 73733730. Its totient is φ = 73733728.

The previous prime is 73733719. The next prime is 73733731. The reversal of 73733729 is 92733737.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53949025 + 19784704 = 7345^2 + 4448^2 .

It is a cyclic number.

It is not a de Polignac number, because 73733729 - 2²⁴ = 56956513 is a prime.

Together with 73733731, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73733719) 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, 36866864 + 36866865.

It is an arithmetic number, because the mean of its divisors is an integer number (36866865).

Almost surely, 2^73733729 is an apocalyptic number.

It is an amenable number.

73733729 is a deficient number, since it is larger than the sum of its proper divisors (1).

73733729 is an equidigital number, since it uses as much as digits as its factorization.

73733729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 166698, while the sum is 41.

The square root of 73733729 is about 8586.8346321564. The cubic root of 73733729 is about 419.3294837784.

The spelling of 73733729 in words is "seventy-three million, seven hundred thirty-three thousand, seven hundred twenty-nine".