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872729 = 111317359
BaseRepresentation
bin11010101000100011001
31122100011022
43111010121
5210411404
630412225
710263254
oct3250431
91570138
10872729
11546770
12361075
13247310
1418a09b
151238be
hexd5119

872729 has 16 divisors (see below), whose sum is σ = 1088640. Its totient is φ = 687360.

The previous prime is 872687. The next prime is 872731. The reversal of 872729 is 927278.

It is a cyclic number.

It is not a de Polignac number, because 872729 - 216 = 807193 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 872729.

It is not an unprimeable number, because it can be changed into a prime (872749) 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, 2252 + ... + 2610.

It is an arithmetic number, because the mean of its divisors is an integer number (68040).

2872729 is an apocalyptic number.

It is an amenable number.

872729 is a deficient number, since it is larger than the sum of its proper divisors (215911).

872729 is a wasteful number, since it uses less digits than its factorization.

872729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400.

The product of its digits is 14112, while the sum is 35.

The square root of 872729 is about 934.1996574609. The cubic root of 872729 is about 95.5637395090.

The spelling of 872729 in words is "eight hundred seventy-two thousand, seven hundred twenty-nine".

Divisors: 1 11 13 17 143 187 221 359 2431 3949 4667 6103 51337 67133 79339 872729