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87375017 is a prime number
BaseRepresentation
bin1010011010100…
…11110010101001
320002102002222202
411031103302221
5134332000032
612400425545
72110450442
oct515236251
9202362882
1087375017
1145359164
12253182b5
13151431c2
14b8662c9
157a0dd62
hex5353ca9

87375017 has 2 divisors, whose sum is σ = 87375018. Its totient is φ = 87375016.

The previous prime is 87374971. The next prime is 87375061. The reversal of 87375017 is 71057378.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51566761 + 35808256 = 7181^2 + 5984^2 .

It is a cyclic number.

It is not a de Polignac number, because 87375017 - 226 = 20266153 is a prime.

It is not a weakly prime, because it can be changed into another prime (87375517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43687508 + 43687509.

It is an arithmetic number, because the mean of its divisors is an integer number (43687509).

Almost surely, 287375017 is an apocalyptic number.

It is an amenable number.

87375017 is a deficient number, since it is larger than the sum of its proper divisors (1).

87375017 is an equidigital number, since it uses as much as digits as its factorization.

87375017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41160, while the sum is 38.

The square root of 87375017 is about 9347.4604572579. The cubic root of 87375017 is about 443.7405231858.

The spelling of 87375017 in words is "eighty-seven million, three hundred seventy-five thousand, seventeen".