679537 has 2 divisors, whose sum is σ = 679538. Its totient is φ = 679536.
The previous prime is 679531. The next prime is 679561. The reversal of 679537 is 735976.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 364816 + 314721 = 604^2 + 561^2 .
It is a cyclic number.
It is not a de Polignac number, because 679537 - 27 = 679409 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 679496 and 679505.
It is not a weakly prime, because it can be changed into another prime (679531) 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, 339768 + 339769.
It is an arithmetic number, because the mean of its divisors is an integer number (339769).
2679537 is an apocalyptic number.
It is an amenable number.
679537 is a deficient number, since it is larger than the sum of its proper divisors (1).
679537 is an equidigital number, since it uses as much as digits as its factorization.
679537 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 39690, while the sum is 37.
The square root of 679537 is about 824.3403423344. The cubic root of 679537 is about 87.9166307535.
It can be divided in two parts, 67 and 9537, that added together give a square (9604 = 982).
The spelling of 679537 in words is "six hundred seventy-nine thousand, five hundred thirty-seven".
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