395826469 has 2 divisors, whose sum is σ = 395826470. Its totient is φ = 395826468.

The previous prime is 395826461. The next prime is 395826493. The reversal of 395826469 is 964628593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 395612100 + 214369 = 19890^2 + 463^2 .

It is an emirp because it is prime and its reverse (964628593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 395826469 - 2³ = 395826461 is a prime.

It is a super-2 number, since 2×395826469² = 313357187122015922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395826461) 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 as a sum of consecutive naturals, namely, 197913234 + 197913235.

It is an arithmetic number, because the mean of its divisors is an integer number (197913235).

Almost surely, 2^395826469 is an apocalyptic number.

It is an amenable number.

395826469 is a deficient number, since it is larger than the sum of its proper divisors (1).

395826469 is an equidigital number, since it uses as much as digits as its factorization.

395826469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2799360, while the sum is 52.

The square root of 395826469 is about 19895.3881339370. The cubic root of 395826469 is about 734.2347652892.

The spelling of 395826469 in words is "three hundred ninety-five million, eight hundred twenty-six thousand, four hundred sixty-nine".