99798667 has 2 divisors, whose sum is σ = 99798668. Its totient is φ = 99798666.

The previous prime is 99798661. The next prime is 99798689. The reversal of 99798667 is 76689799.

It is a weak prime.

It is an emirp because it is prime and its reverse (76689799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99798667 - 2⁷ = 99798539 is a prime.

It is not a weakly prime, because it can be changed into another prime (99798661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49899333 + 49899334.

It is an arithmetic number, because the mean of its divisors is an integer number (49899334).

Almost surely, 2^99798667 is an apocalyptic number.

99798667 is a deficient number, since it is larger than the sum of its proper divisors (1).

99798667 is an equidigital number, since it uses as much as digits as its factorization.

99798667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10287648, while the sum is 61.

The square root of 99798667 is about 9989.9282780208. The cubic root of 99798667 is about 463.8471724070.

The spelling of 99798667 in words is "ninety-nine million, seven hundred ninety-eight thousand, six hundred sixty-seven".