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828807 = 3761647
BaseRepresentation
bin11001010010110000111
31120002220120
43022112013
5203010212
625433023
710021230
oct3122607
91502816
10828807
11516771
1233b773
13230325
14178087
1511588c
hexca587

828807 has 16 divisors (see below), whose sum is σ = 1285632. Its totient is φ = 465120.

The previous prime is 828797. The next prime is 828809. The reversal of 828807 is 708828.

828807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 828807 - 26 = 828743 is a prime.

It is an Ulam number.

828807 is a lucky number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 958 + ... + 1604.

It is an arithmetic number, because the mean of its divisors is an integer number (80352).

2828807 is an apocalyptic number.

828807 is a deficient number, since it is larger than the sum of its proper divisors (456825).

828807 is a wasteful number, since it uses less digits than its factorization.

828807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718.

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 828807 is about 910.3883786604. The cubic root of 828807 is about 93.9329157695.

The spelling of 828807 in words is "eight hundred twenty-eight thousand, eight hundred seven".

Divisors: 1 3 7 21 61 183 427 647 1281 1941 4529 13587 39467 118401 276269 828807