99193907 has 2 divisors, whose sum is σ = 99193908. Its totient is φ = 99193906.

The previous prime is 99193877. The next prime is 99193909. The reversal of 99193907 is 70939199.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99193907 - 2⁸ = 99193651 is a prime.

Together with 99193909, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99193909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49596953 + 49596954.

It is an arithmetic number, because the mean of its divisors is an integer number (49596954).

Almost surely, 2^99193907 is an apocalyptic number.

99193907 is a deficient number, since it is larger than the sum of its proper divisors (1).

99193907 is an equidigital number, since it uses as much as digits as its factorization.

99193907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 137781, while the sum is 47.

The square root of 99193907 is about 9959.6137977333. The cubic root of 99193907 is about 462.9083330289.

The spelling of 99193907 in words is "ninety-nine million, one hundred ninety-three thousand, nine hundred seven".