99765773 has 2 divisors, whose sum is σ = 99765774. Its totient is φ = 99765772.

The previous prime is 99765767. The next prime is 99765791. The reversal of 99765773 is 37756799.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73582084 + 26183689 = 8578^2 + 5117^2 .

It is a cyclic number.

It is not a de Polignac number, because 99765773 - 2⁶ = 99765709 is a prime.

It is a Sophie Germain 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 (99765733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49882886 + 49882887.

It is an arithmetic number, because the mean of its divisors is an integer number (49882887).

Almost surely, 2^99765773 is an apocalyptic number.

It is an amenable number.

99765773 is a deficient number, since it is larger than the sum of its proper divisors (1).

99765773 is an equidigital number, since it uses as much as digits as its factorization.

99765773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2500470, while the sum is 53.

The square root of 99765773 is about 9988.2817841709. The cubic root of 99765773 is about 463.7962049075.

The spelling of 99765773 in words is "ninety-nine million, seven hundred sixty-five thousand, seven hundred seventy-three".