99993799 has 2 divisors, whose sum is σ = 99993800. Its totient is φ = 99993798.

The previous prime is 99993787. The next prime is 99993821. The reversal of 99993799 is 99739999.

It is a weak prime.

It is an emirp because it is prime and its reverse (99739999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99993799 - 2⁵ = 99993767 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99993799.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99993199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49996899 + 49996900.

It is an arithmetic number, because the mean of its divisors is an integer number (49996900).

Almost surely, 2^99993799 is an apocalyptic number.

99993799 is a deficient number, since it is larger than the sum of its proper divisors (1).

99993799 is an equidigital number, since it uses as much as digits as its factorization.

99993799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11160261, while the sum is 64.

The square root of 99993799 is about 9999.6899451933. The cubic root of 99993799 is about 464.1492889988.

The spelling of 99993799 in words is "ninety-nine million, nine hundred ninety-three thousand, seven hundred ninety-nine".