395625589 has 2 divisors, whose sum is σ = 395625590. Its totient is φ = 395625588.

The previous prime is 395625577. The next prime is 395625631. The reversal of 395625589 is 985526593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 330694225 + 64931364 = 18185^2 + 8058^2 .

It is an emirp because it is prime and its reverse (985526593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 395625589 - 2⁵ = 395625557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395625089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197812794 + 197812795.

It is an arithmetic number, because the mean of its divisors is an integer number (197812795).

Almost surely, 2^395625589 is an apocalyptic number.

It is an amenable number.

395625589 is a deficient number, since it is larger than the sum of its proper divisors (1).

395625589 is an equidigital number, since it uses as much as digits as its factorization.

395625589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916000, while the sum is 52.

The square root of 395625589 is about 19890.3390871046. The cubic root of 395625589 is about 734.1105374192.

The spelling of 395625589 in words is "three hundred ninety-five million, six hundred twenty-five thousand, five hundred eighty-nine".