679075543 has 2 divisors, whose sum is σ = 679075544. Its totient is φ = 679075542.

The previous prime is 679075531. The next prime is 679075567. The reversal of 679075543 is 345570976.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 679075543 - 2²¹ = 676978391 is a prime.

It is a super-2 number, since 2×679075543² = 922287186201489698, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 679075493 and 679075502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679075583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339537771 + 339537772.

It is an arithmetic number, because the mean of its divisors is an integer number (339537772).

Almost surely, 2^679075543 is an apocalyptic number.

679075543 is a deficient number, since it is larger than the sum of its proper divisors (1).

679075543 is an equidigital number, since it uses as much as digits as its factorization.

679075543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 793800, while the sum is 46.

The square root of 679075543 is about 26059.0779384076. The cubic root of 679075543 is about 878.9672556736.

The spelling of 679075543 in words is "six hundred seventy-nine million, seventy-five thousand, five hundred forty-three".