395426647 has 32 divisors (see below), whose sum is σ = 524289024. Its totient is φ = 288729600.

The previous prime is 395426627. The next prime is 395426657. The reversal of 395426647 is 746624593.

It is a cyclic number.

It is not a de Polignac number, because 395426647 - 2⁷ = 395426519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 395426597 and 395426606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395426627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 383022 + ... + 384052.

It is an arithmetic number, because the mean of its divisors is an integer number (16384032).

Almost surely, 2^395426647 is an apocalyptic number.

395426647 is a deficient number, since it is larger than the sum of its proper divisors (128862377).

395426647 is a wasteful number, since it uses less digits than its factorization.

395426647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359.

The product of its digits is 1088640, while the sum is 46.

The square root of 395426647 is about 19885.3374877069. The cubic root of 395426647 is about 733.9874665922.

The spelling of 395426647 in words is "three hundred ninety-five million, four hundred twenty-six thousand, six hundred forty-seven".