395944099 has 2 divisors, whose sum is σ = 395944100. Its totient is φ = 395944098.

The previous prime is 395944091. The next prime is 395944117. The reversal of 395944099 is 990449593.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 395944099 - 2³ = 395944091 is a prime.

It is not a weakly prime, because it can be changed into another prime (395944091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197972049 + 197972050.

It is an arithmetic number, because the mean of its divisors is an integer number (197972050).

Almost surely, 2^395944099 is an apocalyptic number.

395944099 is a deficient number, since it is larger than the sum of its proper divisors (1).

395944099 is an equidigital number, since it uses as much as digits as its factorization.

395944099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1574640, while the sum is 52.

The square root of 395944099 is about 19898.3441270876. The cubic root of 395944099 is about 734.3074903241.

The spelling of 395944099 in words is "three hundred ninety-five million, nine hundred forty-four thousand, ninety-nine".