395260889 has 4 divisors (see below), whose sum is σ = 398955024. Its totient is φ = 391566756.

The previous prime is 395260867. The next prime is 395260919. The reversal of 395260889 is 988062593.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-395260889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395260849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1846907 + ... + 1847120.

It is an arithmetic number, because the mean of its divisors is an integer number (99738756).

Almost surely, 2^395260889 is an apocalyptic number.

It is an amenable number.

395260889 is a deficient number, since it is larger than the sum of its proper divisors (3694135).

395260889 is a wasteful number, since it uses less digits than its factorization.

395260889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3694134.

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 395260889 is about 19881.1692060603. The cubic root of 395260889 is about 733.8848927441.

The spelling of 395260889 in words is "three hundred ninety-five million, two hundred sixty thousand, eight hundred eighty-nine".