99975773 has 2 divisors, whose sum is σ = 99975774. Its totient is φ = 99975772.

The previous prime is 99975769. The next prime is 99975787. The reversal of 99975773 is 37757999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91431844 + 8543929 = 9562^2 + 2923^2 .

It is a cyclic number.

It is not a de Polignac number, because 99975773 - 2² = 99975769 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99975173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49987886 + 49987887.

It is an arithmetic number, because the mean of its divisors is an integer number (49987887).

Almost surely, 2^99975773 is an apocalyptic number.

It is an amenable number.

99975773 is a deficient number, since it is larger than the sum of its proper divisors (1).

99975773 is an equidigital number, since it uses as much as digits as its factorization.

99975773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3750705, while the sum is 56.

The square root of 99975773 is about 9998.7885766227. The cubic root of 99975773 is about 464.1213964096.

The spelling of 99975773 in words is "ninety-nine million, nine hundred seventy-five thousand, seven hundred seventy-three".