395427457 has 2 divisors, whose sum is σ = 395427458. Its totient is φ = 395427456.

The previous prime is 395427427. The next prime is 395427517. The reversal of 395427457 is 754724593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 332843536 + 62583921 = 18244^2 + 7911^2 .

It is a cyclic number.

It is not a de Polignac number, because 395427457 - 2¹¹ = 395425409 is a prime.

It is not a weakly prime, because it can be changed into another prime (395427427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197713728 + 197713729.

It is an arithmetic number, because the mean of its divisors is an integer number (197713729).

Almost surely, 2^395427457 is an apocalyptic number.

It is an amenable number.

395427457 is a deficient number, since it is larger than the sum of its proper divisors (1).

395427457 is an equidigital number, since it uses as much as digits as its factorization.

395427457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1058400, while the sum is 46.

The square root of 395427457 is about 19885.3578544617. The cubic root of 395427457 is about 733.9879677635.

The spelling of 395427457 in words is "three hundred ninety-five million, four hundred twenty-seven thousand, four hundred fifty-seven".