395366393 has 2 divisors, whose sum is σ = 395366394. Its totient is φ = 395366392.

The previous prime is 395366369. The next prime is 395366401. The reversal of 395366393 is 393663593.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 360886009 + 34480384 = 18997^2 + 5872^2 .

It is a cyclic number.

It is not a de Polignac number, because 395366393 - 2⁸ = 395366137 is a prime.

It is not a weakly prime, because it can be changed into another prime (395366593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197683196 + 197683197.

It is an arithmetic number, because the mean of its divisors is an integer number (197683197).

Almost surely, 2^395366393 is an apocalyptic number.

It is an amenable number.

395366393 is a deficient number, since it is larger than the sum of its proper divisors (1).

395366393 is an equidigital number, since it uses as much as digits as its factorization.

395366393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1180980, while the sum is 47.

The square root of 395366393 is about 19883.8223940972. The cubic root of 395366393 is about 733.9501837167.

The spelling of 395366393 in words is "three hundred ninety-five million, three hundred sixty-six thousand, three hundred ninety-three".