395478871 has 6 divisors (see below), whose sum is σ = 420111080. Its totient is φ = 372215136.

The previous prime is 395478847. The next prime is 395478877. The reversal of 395478871 is 178874593.

It is not a de Polignac number, because 395478871 - 2⁹ = 395478359 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 (395478877) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 683931 + ... + 684508.

Almost surely, 2^395478871 is an apocalyptic number.

395478871 is a deficient number, since it is larger than the sum of its proper divisors (24632209).

395478871 is a wasteful number, since it uses less digits than its factorization.

395478871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368473 (or 1368456 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 52.

The square root of 395478871 is about 19886.6505726832. The cubic root of 395478871 is about 734.0197777464.

The spelling of 395478871 in words is "three hundred ninety-five million, four hundred seventy-eight thousand, eight hundred seventy-one".