395676217 has 8 divisors (see below), whose sum is σ = 403777224. Its totient is φ = 387598848.

The previous prime is 395676181. The next prime is 395676223. The reversal of 395676217 is 712676593.

It can be written as a sum of positive squares in 4 ways, for example, as 126585001 + 269091216 = 11251^2 + 16404^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 395676217 - 2⁷ = 395676089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395676227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30123 + ... + 41215.

It is an arithmetic number, because the mean of its divisors is an integer number (50472153).

Almost surely, 2^395676217 is an apocalyptic number.

It is an amenable number.

395676217 is a deficient number, since it is larger than the sum of its proper divisors (8101007).

395676217 is a wasteful number, since it uses less digits than its factorization.

395676217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11819.

The product of its digits is 476280, while the sum is 46.

The square root of 395676217 is about 19891.6117245436. The cubic root of 395676217 is about 734.1418506642.

The spelling of 395676217 in words is "three hundred ninety-five million, six hundred seventy-six thousand, two hundred seventeen".