99959947 has 2 divisors, whose sum is σ = 99959948. Its totient is φ = 99959946.

The previous prime is 99959941. The next prime is 99959953. The reversal of 99959947 is 74995999.

It is a balanced prime because it is at equal distance from previous prime (99959941) and next prime (99959953).

It is a cyclic number.

It is not a de Polignac number, because 99959947 - 2³ = 99959939 is a prime.

It is not a weakly prime, because it can be changed into another prime (99959941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49979973 + 49979974.

It is an arithmetic number, because the mean of its divisors is an integer number (49979974).

Almost surely, 2^99959947 is an apocalyptic number.

99959947 is a deficient number, since it is larger than the sum of its proper divisors (1).

99959947 is an equidigital number, since it uses as much as digits as its factorization.

99959947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8266860, while the sum is 61.

The square root of 99959947 is about 9997.9971494295. The cubic root of 99959947 is about 464.0969052333.

The spelling of 99959947 in words is "ninety-nine million, nine hundred fifty-nine thousand, nine hundred forty-seven".