73931761 has 2 divisors, whose sum is σ = 73931762. Its totient is φ = 73931760.

The previous prime is 73931713. The next prime is 73931773. The reversal of 73931761 is 16713937.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61716736 + 12215025 = 7856^2 + 3495^2 .

It is a cyclic number.

It is not a de Polignac number, because 73931761 - 2⁷ = 73931633 is a prime.

It is a super-2 number, since 2×73931761² = 10931810569122242, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73931761.

It is not a weakly prime, because it can be changed into another prime (73931161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36965880 + 36965881.

It is an arithmetic number, because the mean of its divisors is an integer number (36965881).

Almost surely, 2^73931761 is an apocalyptic number.

It is an amenable number.

73931761 is a deficient number, since it is larger than the sum of its proper divisors (1).

73931761 is an equidigital number, since it uses as much as digits as its factorization.

73931761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23814, while the sum is 37.

The square root of 73931761 is about 8598.3580409285. The cubic root of 73931761 is about 419.7045560166.

The spelling of 73931761 in words is "seventy-three million, nine hundred thirty-one thousand, seven hundred sixty-one".