395493271 has 4 divisors (see below), whose sum is σ = 409131000. Its totient is φ = 381855544.

The previous prime is 395493251. The next prime is 395493277. The reversal of 395493271 is 172394593.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 395493271 - 2⁵ = 395493239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395493277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6818821 + ... + 6818878.

It is an arithmetic number, because the mean of its divisors is an integer number (102282750).

Almost surely, 2^395493271 is an apocalyptic number.

395493271 is a deficient number, since it is larger than the sum of its proper divisors (13637729).

395493271 is a wasteful number, since it uses less digits than its factorization.

395493271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13637728.

The product of its digits is 204120, while the sum is 43.

The square root of 395493271 is about 19887.0126213064. The cubic root of 395493271 is about 734.0286865717.

The spelling of 395493271 in words is "three hundred ninety-five million, four hundred ninety-three thousand, two hundred seventy-one".