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806489 = 3771307
BaseRepresentation
bin11000100111001011001
31111222021222
43010321121
5201301424
625141425
76566165
oct3047131
91458258
10806489
11500a22
1232a875
13223118
1416dca5
1510de5e
hexc4e59

806489 has 8 divisors (see below), whose sum is σ = 842688. Its totient is φ = 771120.

The previous prime is 806483. The next prime is 806503. The reversal of 806489 is 984608.

806489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 806489 - 28 = 806233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (806483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2474 + ... + 2780.

It is an arithmetic number, because the mean of its divisors is an integer number (105336).

2806489 is an apocalyptic number.

It is an amenable number.

806489 is a deficient number, since it is larger than the sum of its proper divisors (36199).

806489 is a wasteful number, since it uses less digits than its factorization.

806489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 806489 is about 898.0473261471. The cubic root of 806489 is about 93.0820950052.

The spelling of 806489 in words is "eight hundred six thousand, four hundred eighty-nine".

Divisors: 1 37 71 307 2627 11359 21797 806489