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872841 = 31915313
BaseRepresentation
bin11010101000110001001
31122100022110
43111012021
5210412331
630412533
710263504
oct3250611
91570273
10872841
11546862
12361149
13247398
1418a13b
15123946
hexd5189

872841 has 8 divisors (see below), whose sum is σ = 1225120. Its totient is φ = 551232.

The previous prime is 872791. The next prime is 872843. The reversal of 872841 is 148278.

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

It is not a de Polignac number, because 872841 - 210 = 871817 is a prime.

It is a super-2 number, since 2×8728412 = 1523702822562, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 872799 and 872808.

It is not an unprimeable number, because it can be changed into a prime (872843) 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, 7600 + ... + 7713.

It is an arithmetic number, because the mean of its divisors is an integer number (153140).

2872841 is an apocalyptic number.

It is an amenable number.

872841 is a deficient number, since it is larger than the sum of its proper divisors (352279).

872841 is a wasteful number, since it uses less digits than its factorization.

872841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15335.

The product of its digits is 3584, while the sum is 30.

The square root of 872841 is about 934.2595998972. The cubic root of 872841 is about 95.5678273304.

The spelling of 872841 in words is "eight hundred seventy-two thousand, eight hundred forty-one".

Divisors: 1 3 19 57 15313 45939 290947 872841