73730737 has 2 divisors, whose sum is σ = 73730738. Its totient is φ = 73730736.

The previous prime is 73730729. The next prime is 73730771. The reversal of 73730737 is 73703737.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37442161 + 36288576 = 6119^2 + 6024^2 .

It is an emirp because it is prime and its reverse (73703737) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73730737 - 2³ = 73730729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73730696 and 73730705.

It is not a weakly prime, because it can be changed into another prime (73730777) 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, 36865368 + 36865369.

It is an arithmetic number, because the mean of its divisors is an integer number (36865369).

Almost surely, 2^73730737 is an apocalyptic number.

It is an amenable number.

73730737 is a deficient number, since it is larger than the sum of its proper divisors (1).

73730737 is an equidigital number, since it uses as much as digits as its factorization.

73730737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64827, while the sum is 37.

The square root of 73730737 is about 8586.6604101944. The cubic root of 73730737 is about 419.3238117890.

Subtracting from 73730737 its reverse (73703737), we obtain a cube (27000 = 30³).

The spelling of 73730737 in words is "seventy-three million, seven hundred thirty thousand, seven hundred thirty-seven".