395878465 has 16 divisors (see below), whose sum is σ = 485005968. Its totient is φ = 310093056.

The previous prime is 395878459. The next prime is 395878481. The reversal of 395878465 is 564878593.

It can be written as a sum of positive squares in 8 ways, for example, as 982081 + 394896384 = 991^2 + 19872^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-395878465 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161227 + ... + 163663.

It is an arithmetic number, because the mean of its divisors is an integer number (30312873).

Almost surely, 2^395878465 is an apocalyptic number.

It is an amenable number.

395878465 is a deficient number, since it is larger than the sum of its proper divisors (89127503).

395878465 is a wasteful number, since it uses less digits than its factorization.

395878465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108.

The product of its digits is 7257600, while the sum is 55.

The square root of 395878465 is about 19896.6948260258. The cubic root of 395878465 is about 734.2669137198.

The spelling of 395878465 in words is "three hundred ninety-five million, eight hundred seventy-eight thousand, four hundred sixty-five".