396785 has 4 divisors (see below), whose sum is σ = 476148. Its totient is φ = 317424.

The previous prime is 396733. The next prime is 396833. The reversal of 396785 is 587693.

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

It can be written as a sum of positive squares in 2 ways, for example, as 173056 + 223729 = 416^2 + 473^2 .

It is a cyclic number.

It is not a de Polignac number, because 396785 - 2¹⁶ = 331249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39674 + ... + 39683.

It is an arithmetic number, because the mean of its divisors is an integer number (119037).

2³⁹⁶⁷⁸⁵ is an apocalyptic number.

It is an amenable number.

396785 is a deficient number, since it is larger than the sum of its proper divisors (79363).

396785 is an equidigital number, since it uses as much as digits as its factorization.

396785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79362.

The product of its digits is 45360, while the sum is 38.

The square root of 396785 is about 629.9087235465. The cubic root of 396785 is about 73.4826960360.

The spelling of 396785 in words is "three hundred ninety-six thousand, seven hundred eighty-five".