Search a number
-
+
396895 = 579379
BaseRepresentation
bin1100000111001011111
3202011102211
41200321133
5100200040
612301251
73242062
oct1407137
9664384
10396895
11251214
12171827
1310b865
14a48d9
157c8ea
hex60e5f

396895 has 4 divisors (see below), whose sum is σ = 476280. Its totient is φ = 317512.

The previous prime is 396887. The next prime is 396919. The reversal of 396895 is 598693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 598693 = 4011493.

It is a cyclic number.

It is not a de Polignac number, because 396895 - 23 = 396887 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39685 + ... + 39694.

It is an arithmetic number, because the mean of its divisors is an integer number (119070).

2396895 is an apocalyptic number.

396895 is a deficient number, since it is larger than the sum of its proper divisors (79385).

396895 is an equidigital number, since it uses as much as digits as its factorization.

396895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79384.

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

The square root of 396895 is about 629.9960317335. The cubic root of 396895 is about 73.4894859010.

The spelling of 396895 in words is "three hundred ninety-six thousand, eight hundred ninety-five".

Divisors: 1 5 79379 396895