395405357 has 2 divisors, whose sum is σ = 395405358. Its totient is φ = 395405356.

The previous prime is 395405321. The next prime is 395405383. The reversal of 395405357 is 753504593.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204661636 + 190743721 = 14306^2 + 13811^2 .

It is a cyclic number.

It is not a de Polignac number, because 395405357 - 2⁶ = 395405293 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 (395405557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197702678 + 197702679.

It is an arithmetic number, because the mean of its divisors is an integer number (197702679).

Almost surely, 2^395405357 is an apocalyptic number.

It is an amenable number.

395405357 is a deficient number, since it is larger than the sum of its proper divisors (1).

395405357 is an equidigital number, since it uses as much as digits as its factorization.

395405357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 283500, while the sum is 41.

The square root of 395405357 is about 19884.8021614498. The cubic root of 395405357 is about 733.9742935855.

The spelling of 395405357 in words is "three hundred ninety-five million, four hundred five thousand, three hundred fifty-seven".