99827807 has 2 divisors, whose sum is σ = 99827808. Its totient is φ = 99827806.

The previous prime is 99827803. The next prime is 99827809. The reversal of 99827807 is 70872899.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (70872899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99827807 - 2² = 99827803 is a prime.

Together with 99827809, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99827803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49913903 + 49913904.

It is an arithmetic number, because the mean of its divisors is an integer number (49913904).

Almost surely, 2^99827807 is an apocalyptic number.

99827807 is a deficient number, since it is larger than the sum of its proper divisors (1).

99827807 is an equidigital number, since it uses as much as digits as its factorization.

99827807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 50.

The square root of 99827807 is about 9991.3866405019. The cubic root of 99827807 is about 463.8923139294.

The spelling of 99827807 in words is "ninety-nine million, eight hundred twenty-seven thousand, eight hundred seven".