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87348169 is a prime number
BaseRepresentation
bin1010011010011…
…01001111001001
320002100202011101
411031031033021
5134330120134
612400101401
72110306246
oct515151711
9202322141
1087348169
114533aa77
1225304861
1315133c0c
14b85a5cd
157a05e14
hex534d3c9

87348169 has 2 divisors, whose sum is σ = 87348170. Its totient is φ = 87348168.

The previous prime is 87348127. The next prime is 87348197. The reversal of 87348169 is 96184378.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76038400 + 11309769 = 8720^2 + 3363^2 .

It is a cyclic number.

It is not a de Polignac number, because 87348169 - 211 = 87346121 is a prime.

It is a super-2 number, since 2×873481692 = 15259405255305122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87348109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43674084 + 43674085.

It is an arithmetic number, because the mean of its divisors is an integer number (43674085).

Almost surely, 287348169 is an apocalyptic number.

It is an amenable number.

87348169 is a deficient number, since it is larger than the sum of its proper divisors (1).

87348169 is an equidigital number, since it uses as much as digits as its factorization.

87348169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 46.

The square root of 87348169 is about 9346.0242349354. The cubic root of 87348169 is about 443.6950686748.

The spelling of 87348169 in words is "eighty-seven million, three hundred forty-eight thousand, one hundred sixty-nine".