99944087 has 2 divisors, whose sum is σ = 99944088. Its totient is φ = 99944086.

The previous prime is 99944069. The next prime is 99944107. The reversal of 99944087 is 78044999.

It is a weak prime.

It is an emirp because it is prime and its reverse (78044999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99944087 - 2⁶ = 99944023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99944287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49972043 + 49972044.

It is an arithmetic number, because the mean of its divisors is an integer number (49972044).

Almost surely, 2^99944087 is an apocalyptic number.

99944087 is a deficient number, since it is larger than the sum of its proper divisors (1).

99944087 is an equidigital number, since it uses as much as digits as its factorization.

99944087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 99944087 is about 9997.2039591078. The cubic root of 99944087 is about 464.0723588476.

The spelling of 99944087 in words is "ninety-nine million, nine hundred forty-four thousand, eighty-seven".