39995299 has 2 divisors, whose sum is σ = 39995300.
Its totient is φ = 39995298.
The previous prime is 39995287. The next prime is 39995303. The reversal of 39995299 is 99259993.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 39995299 - 213 = 39987107 is a prime.
It is not a weakly prime, because it can be changed into another prime (39995099) by changing a digit.
It is a good prime.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19997649 + 19997650.
It is an arithmetic number, because the mean of its divisors is an integer number (19997650).
Almost surely, 239995299 is an apocalyptic number.
39995299 is a deficient number, since it is larger than the sum of its proper divisors (1).
39995299 is an equidigital number, since it uses as much as digits as its factorization.
39995299 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1771470, while the sum is 55.
The square root of 39995299 is about 6324.1836627347.
The cubic root of 39995299 is about 341.9817911489.
The spelling of 39995299 in words is "thirty-nine million, nine hundred ninety-five thousand, two hundred ninety-nine".