99951877 has 2 divisors, whose sum is σ = 99951878. Its totient is φ = 99951876.

The previous prime is 99951851. The next prime is 99951881. The reversal of 99951877 is 77815999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54375876 + 45576001 = 7374^2 + 6751^2 .

It is an emirp because it is prime and its reverse (77815999) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99951877 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99951377) 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, 49975938 + 49975939.

It is an arithmetic number, because the mean of its divisors is an integer number (49975939).

Almost surely, 2^99951877 is an apocalyptic number.

It is an amenable number.

99951877 is a deficient number, since it is larger than the sum of its proper divisors (1).

99951877 is an equidigital number, since it uses as much as digits as its factorization.

99951877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1428840, while the sum is 55.

The square root of 99951877 is about 9997.5935604524. The cubic root of 99951877 is about 464.0844156882.

The spelling of 99951877 in words is "ninety-nine million, nine hundred fifty-one thousand, eight hundred seventy-seven".