396859 has 4 divisors (see below), whose sum is σ = 400816. Its totient is φ = 392904.

The previous prime is 396833. The next prime is 396871. The reversal of 396859 is 958693.

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 396859 - 2¹¹ = 394811 is a prime.

It is a super-3 number, since 3×396859³ = 187512384205403337, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396259) 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, 1824 + ... + 2029.

It is an arithmetic number, because the mean of its divisors is an integer number (100204).

2³⁹⁶⁸⁵⁹ is an apocalyptic number.

396859 is a deficient number, since it is larger than the sum of its proper divisors (3957).

396859 is a wasteful number, since it uses less digits than its factorization.

396859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3956.

The product of its digits is 58320, while the sum is 40.

The square root of 396859 is about 629.9674594771. The cubic root of 396859 is about 73.4872639015.

The spelling of 396859 in words is "three hundred ninety-six thousand, eight hundred fifty-nine".