71773763 has 2 divisors, whose sum is σ = 71773764. Its totient is φ = 71773762.

The previous prime is 71773733. The next prime is 71773769. The reversal of 71773763 is 36737717.

It is a strong prime.

It is an emirp because it is prime and its reverse (36737717) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71773763 - 2⁶ = 71773699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71773763.

It is not a weakly prime, because it can be changed into another prime (71773769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35886881 + 35886882.

It is an arithmetic number, because the mean of its divisors is an integer number (35886882).

Almost surely, 2^71773763 is an apocalyptic number.

71773763 is a deficient number, since it is larger than the sum of its proper divisors (1).

71773763 is an equidigital number, since it uses as much as digits as its factorization.

71773763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129654, while the sum is 41.

The square root of 71773763 is about 8471.9397424675. The cubic root of 71773763 is about 415.5805741650.

The spelling of 71773763 in words is "seventy-one million, seven hundred seventy-three thousand, seven hundred sixty-three".