872229 has 8 divisors (see below), whose sum is σ = 1213632. Its totient is φ = 556160.
The previous prime is 872227. The next prime is 872231. The reversal of 872229 is 922278.
It is an interprime number because it is at equal distance from previous prime (872227) and next prime (872231).
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 872229 - 21 = 872227 is a prime.
It is a plaindrome in base 15.
It is a junction number, because it is equal to n+sod(n) for n = 872196 and 872205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (872227) 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, 6252 + ... + 6389.
It is an arithmetic number, because the mean of its divisors is an integer number (151704).
2872229 is an apocalyptic number.
It is an amenable number.
872229 is a deficient number, since it is larger than the sum of its proper divisors (341403).
872229 is a wasteful number, since it uses less digits than its factorization.
872229 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12667.
The product of its digits is 4032, while the sum is 30.
The square root of 872229 is about 933.9320103733. The cubic root of 872229 is about 95.5454860391.
The spelling of 872229 in words is "eight hundred seventy-two thousand, two hundred twenty-nine".
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