99713851 has 2 divisors, whose sum is σ = 99713852.
Its totient is φ = 99713850.
The previous prime is 99713849. The next prime is 99713893. The reversal of 99713851 is 15831799.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 99713851 - 21 = 99713849 is a prime.
Together with 99713849, it forms a pair of twin primes.
It is a junction number, because it is equal to n+sod(n) for n = 99713798 and 99713807.
It is not a weakly prime, because it can be changed into another prime (99713351) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49856925 + 49856926.
It is an arithmetic number, because the mean of its divisors is an integer number (49856926).
Almost surely, 299713851 is an apocalyptic number.
99713851 is the 6316-th centered pentagonal number.
99713851 is a deficient number, since it is larger than the sum of its proper divisors (1).
99713851 is an equidigital number, since it uses as much as digits as its factorization.
99713851 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 68040, while the sum is 43.
The square root of 99713851 is about 9985.6823001736.
The cubic root of 99713851 is about 463.7157317331.
The spelling of 99713851 in words is "ninety-nine million, seven hundred thirteen thousand, eight hundred fifty-one".