395670869 has 16 divisors (see below), whose sum is σ = 468187776. Its totient is φ = 330278400.

The previous prime is 395670851. The next prime is 395670871. The reversal of 395670869 is 968076593.

It is a cyclic number.

It is not a de Polignac number, because 395670869 - 2¹⁶ = 395605333 is a prime.

It is a super-2 number, since 2×395670869² = 313110873150430322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 395670869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395670889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18137 + ... + 33470.

It is an arithmetic number, because the mean of its divisors is an integer number (29261736).

Almost surely, 2^395670869 is an apocalyptic number.

It is an amenable number.

395670869 is a deficient number, since it is larger than the sum of its proper divisors (72516907).

395670869 is a wasteful number, since it uses less digits than its factorization.

395670869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51676.

The product of its (nonzero) digits is 2449440, while the sum is 53.

The square root of 395670869 is about 19891.4772955656. The cubic root of 395670869 is about 734.1385430707.

The spelling of 395670869 in words is "three hundred ninety-five million, six hundred seventy thousand, eight hundred sixty-nine".