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806385 = 3553759
BaseRepresentation
bin11000100110111110001
31111222011010
43010313301
5201301020
625141133
76565656
oct3046761
91458133
10806385
11500938
1232a7a9
13223068
1416dc2d
1510dde0
hexc4df1

806385 has 8 divisors (see below), whose sum is σ = 1290240. Its totient is φ = 430064.

The previous prime is 806383. The next prime is 806389. The reversal of 806385 is 583608.

806385 is nontrivially palindromic in base 7.

806385 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 806385 - 21 = 806383 is a prime.

806385 is an undulating number in base 7.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (806381) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 26865 + ... + 26894.

It is an arithmetic number, because the mean of its divisors is an integer number (161280).

2806385 is an apocalyptic number.

It is an amenable number.

806385 is a deficient number, since it is larger than the sum of its proper divisors (483855).

806385 is a wasteful number, since it uses less digits than its factorization.

806385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53767.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 806385 is about 897.9894208731. The cubic root of 806385 is about 93.0780937297.

The spelling of 806385 in words is "eight hundred six thousand, three hundred eighty-five".

Divisors: 1 3 5 15 53759 161277 268795 806385