399300071 has 2 divisors, whose sum is σ = 399300072. Its totient is φ = 399300070.

The previous prime is 399300059. The next prime is 399300149. The reversal of 399300071 is 170003993.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (170003993) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 399300071 - 2⁶ = 399300007 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (399300001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199650035 + 199650036.

It is an arithmetic number, because the mean of its divisors is an integer number (199650036).

Almost surely, 2^399300071 is an apocalyptic number.

399300071 is a deficient number, since it is larger than the sum of its proper divisors (1).

399300071 is an equidigital number, since it uses as much as digits as its factorization.

399300071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5103, while the sum is 32.

The square root of 399300071 is about 19982.4941135985. The cubic root of 399300071 is about 736.3762887357.

The spelling of 399300071 in words is "three hundred ninety-nine million, three hundred thousand, seventy-one".