395996539 has 4 divisors (see below), whose sum is σ = 396058456. Its totient is φ = 395934624.

The previous prime is 395996519. The next prime is 395996551. The reversal of 395996539 is 935699593.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 395996539 - 2¹³ = 395988347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395996519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20094 + ... + 34579.

It is an arithmetic number, because the mean of its divisors is an integer number (99014614).

Almost surely, 2^395996539 is an apocalyptic number.

395996539 is a deficient number, since it is larger than the sum of its proper divisors (61917).

395996539 is an equidigital number, since it uses as much as digits as its factorization.

395996539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61916.

The product of its digits is 8857350, while the sum is 58.

The square root of 395996539 is about 19899.6617810454. The cubic root of 395996539 is about 734.3399068403.

The spelling of 395996539 in words is "three hundred ninety-five million, nine hundred ninety-six thousand, five hundred thirty-nine".