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10687217 is a prime number
BaseRepresentation
bin101000110001…
…001011110001
3202002222002212
4220301023301
510213442332
61021021505
7156561032
oct50611361
922088085
1010687217
11603a512
1236b4895
1322a25c8
1415c2a89
15e118b2
hexa312f1

10687217 has 2 divisors, whose sum is σ = 10687218. Its totient is φ = 10687216.

The previous prime is 10687211. The next prime is 10687223. The reversal of 10687217 is 71278601.

It is a balanced prime because it is at equal distance from previous prime (10687211) and next prime (10687223).

It can be written as a sum of positive squares in only one way, i.e., 7268416 + 3418801 = 2696^2 + 1849^2 .

It is an emirp because it is prime and its reverse (71278601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10687217 - 26 = 10687153 is a prime.

It is a super-2 number, since 2×106872172 = 228433214410178, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10687211) 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 as a sum of consecutive naturals, namely, 5343608 + 5343609.

It is an arithmetic number, because the mean of its divisors is an integer number (5343609).

Almost surely, 210687217 is an apocalyptic number.

It is an amenable number.

10687217 is a deficient number, since it is larger than the sum of its proper divisors (1).

10687217 is an equidigital number, since it uses as much as digits as its factorization.

10687217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 10687217 is about 3269.1309242672. The cubic root of 10687217 is about 220.2697586251.

The spelling of 10687217 in words is "ten million, six hundred eighty-seven thousand, two hundred seventeen".