395729 has 4 divisors (see below), whose sum is σ = 404976. Its totient is φ = 386484.

The previous prime is 395719. The next prime is 395737. The reversal of 395729 is 927593.

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, and also an emirpimes, since its reverse is a distinct semiprime: 927593 = 151 ⋅6143.

It is a de Polignac number, because none of the positive numbers 2^k-395729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395719) 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, 4559 + ... + 4644.

It is an arithmetic number, because the mean of its divisors is an integer number (101244).

2³⁹⁵⁷²⁹ is an apocalyptic number.

It is an amenable number.

395729 is a deficient number, since it is larger than the sum of its proper divisors (9247).

395729 is an equidigital number, since it uses as much as digits as its factorization.

395729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9246.

The product of its digits is 17010, while the sum is 35.

The square root of 395729 is about 629.0699484159. The cubic root of 395729 is about 73.4174493925.

The spelling of 395729 in words is "three hundred ninety-five thousand, seven hundred twenty-nine".