99924787 has 2 divisors, whose sum is σ = 99924788. Its totient is φ = 99924786.

The previous prime is 99924767. The next prime is 99924817. The reversal of 99924787 is 78742999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99924787 - 2⁷ = 99924659 is a prime.

It is not a weakly prime, because it can be changed into another prime (99924707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49962393 + 49962394.

It is an arithmetic number, because the mean of its divisors is an integer number (49962394).

Almost surely, 2^99924787 is an apocalyptic number.

99924787 is a deficient number, since it is larger than the sum of its proper divisors (1).

99924787 is an equidigital number, since it uses as much as digits as its factorization.

99924787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 55.

The square root of 99924787 is about 9996.2386426095. The cubic root of 99924787 is about 464.0424849005.

The spelling of 99924787 in words is "ninety-nine million, nine hundred twenty-four thousand, seven hundred eighty-seven".