687601067 has 2 divisors, whose sum is σ = 687601068. Its totient is φ = 687601066.
The previous prime is 687601039. The next prime is 687601073. The reversal of 687601067 is 760106786.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 687601067 - 214 = 687584683 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (687601097) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343800533 + 343800534.
It is an arithmetic number, because the mean of its divisors is an integer number (343800534).
Almost surely, 2687601067 is an apocalyptic number.
687601067 is a deficient number, since it is larger than the sum of its proper divisors (1).
687601067 is an equidigital number, since it uses as much as digits as its factorization.
687601067 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 84672, while the sum is 41.
The square root of 687601067 is about 26222.1484054987. The cubic root of 687601067 is about 882.6303304052.
The spelling of 687601067 in words is "six hundred eighty-seven million, six hundred one thousand, sixty-seven".
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