71763673 has 2 divisors, whose sum is σ = 71763674. Its totient is φ = 71763672.

The previous prime is 71763649. The next prime is 71763691. The reversal of 71763673 is 37636717.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49182169 + 22581504 = 7013^2 + 4752^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71763673 is a prime.

It is not a weakly prime, because it can be changed into another prime (71763623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35881836 + 35881837.

It is an arithmetic number, because the mean of its divisors is an integer number (35881837).

Almost surely, 2^71763673 is an apocalyptic number.

It is an amenable number.

71763673 is a deficient number, since it is larger than the sum of its proper divisors (1).

71763673 is an equidigital number, since it uses as much as digits as its factorization.

71763673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 111132, while the sum is 40.

The square root of 71763673 is about 8471.3442262725. The cubic root of 71763673 is about 415.5610990609.

The spelling of 71763673 in words is "seventy-one million, seven hundred sixty-three thousand, six hundred seventy-three".