395516393 has 2 divisors, whose sum is σ = 395516394. Its totient is φ = 395516392.

The previous prime is 395516377. The next prime is 395516453. The reversal of 395516393 is 393615593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199600384 + 195916009 = 14128^2 + 13997^2 .

It is a cyclic number.

It is not a de Polignac number, because 395516393 - 2⁴ = 395516377 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (395516323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197758196 + 197758197.

It is an arithmetic number, because the mean of its divisors is an integer number (197758197).

Almost surely, 2^395516393 is an apocalyptic number.

It is an amenable number.

395516393 is a deficient number, since it is larger than the sum of its proper divisors (1).

395516393 is an equidigital number, since it uses as much as digits as its factorization.

395516393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 328050, while the sum is 44.

The square root of 395516393 is about 19887.5939469811. The cubic root of 395516393 is about 734.0429909706.

The spelling of 395516393 in words is "three hundred ninety-five million, five hundred sixteen thousand, three hundred ninety-three".