73043741 has 2 divisors, whose sum is σ = 73043742. Its totient is φ = 73043740.

The previous prime is 73043731. The next prime is 73043743. The reversal of 73043741 is 14734037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57441241 + 15602500 = 7579^2 + 3950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73043741 is a prime.

It is a Sophie Germain prime.

Together with 73043743, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73043743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36521870 + 36521871.

It is an arithmetic number, because the mean of its divisors is an integer number (36521871).

Almost surely, 2^73043741 is an apocalyptic number.

It is an amenable number.

73043741 is a deficient number, since it is larger than the sum of its proper divisors (1).

73043741 is an equidigital number, since it uses as much as digits as its factorization.

73043741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 73043741 is about 8546.5631103971. The cubic root of 73043741 is about 418.0173771612.

Adding to 73043741 its reverse (14734037), we get a palindrome (87777778).

The spelling of 73043741 in words is "seventy-three million, forty-three thousand, seven hundred forty-one".