99930907 has 2 divisors, whose sum is σ = 99930908. Its totient is φ = 99930906.

The previous prime is 99930893. The next prime is 99930911. The reversal of 99930907 is 70903999.

It is a strong prime.

It is an emirp because it is prime and its reverse (70903999) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99930907 is a prime.

It is equal to p_5757679 and since 99930907 and 5757679 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (99930997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49965453 + 49965454.

It is an arithmetic number, because the mean of its divisors is an integer number (49965454).

Almost surely, 2^99930907 is an apocalyptic number.

99930907 is a deficient number, since it is larger than the sum of its proper divisors (1).

99930907 is an equidigital number, since it uses as much as digits as its factorization.

99930907 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 46.

The square root of 99930907 is about 9996.5447530634. The cubic root of 99930907 is about 464.0519582992.

The spelling of 99930907 in words is "ninety-nine million, nine hundred thirty thousand, nine hundred seven".