73206761 has 2 divisors, whose sum is σ = 73206762. Its totient is φ = 73206760.

The previous prime is 73206739. The next prime is 73206767. The reversal of 73206761 is 16760237.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64320400 + 8886361 = 8020^2 + 2981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73206761 is a prime.

It is a super-2 number, since 2×73206761² = 10718459712222242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (73206767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36603380 + 36603381.

It is an arithmetic number, because the mean of its divisors is an integer number (36603381).

Almost surely, 2^73206761 is an apocalyptic number.

It is an amenable number.

73206761 is a deficient number, since it is larger than the sum of its proper divisors (1).

73206761 is an equidigital number, since it uses as much as digits as its factorization.

73206761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 73206761 is about 8556.0949620724. The cubic root of 73206761 is about 418.3281250266.

Adding to 73206761 its reverse (16760237), we get a palindrome (89966998).

The spelling of 73206761 in words is "seventy-three million, two hundred six thousand, seven hundred sixty-one".