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84217 = 753227
BaseRepresentation
bin10100100011111001
311021112011
4110203321
510143332
61445521
7500350
oct244371
9137464
1084217
1158301
12408a1
132c443
1422997
1519e47
hex148f9

84217 has 8 divisors (see below), whose sum is σ = 98496. Its totient is φ = 70512.

The previous prime is 84211. The next prime is 84221. The reversal of 84217 is 71248.

84217 is nontrivially palindromic in base 3.

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 84217 - 27 = 84089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84211) 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, 258 + ... + 484.

It is an arithmetic number, because the mean of its divisors is an integer number (12312).

284217 is an apocalyptic number.

It is an amenable number.

84217 is a deficient number, since it is larger than the sum of its proper divisors (14279).

84217 is a wasteful number, since it uses less digits than its factorization.

84217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287.

The product of its digits is 448, while the sum is 22.

The square root of 84217 is about 290.2016540270. The cubic root of 84217 is about 43.8328714967.

It can be divided in two parts, 8 and 4217, that added together give a square (4225 = 652).

The spelling of 84217 in words is "eighty-four thousand, two hundred seventeen".

Divisors: 1 7 53 227 371 1589 12031 84217