679487 has 2 divisors, whose sum is σ = 679488. Its totient is φ = 679486.

The previous prime is 679463. The next prime is 679501. The reversal of 679487 is 784976.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 679487 - 2⁶ = 679423 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 679487.

It is not a weakly prime, because it can be changed into another prime (679417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339743 + 339744.

It is an arithmetic number, because the mean of its divisors is an integer number (339744).

2⁶⁷⁹⁴⁸⁷ is an apocalyptic number.

679487 is a deficient number, since it is larger than the sum of its proper divisors (1).

679487 is an equidigital number, since it uses as much as digits as its factorization.

679487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 41.

The square root of 679487 is about 824.3100144970. The cubic root of 679487 is about 87.9144744131.

The spelling of 679487 in words is "six hundred seventy-nine thousand, four hundred eighty-seven".