806089679 has 2 divisors, whose sum is σ = 806089680. Its totient is φ = 806089678.

The previous prime is 806089633. The next prime is 806089729. The reversal of 806089679 is 976980608.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-806089679 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 806089679.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (806089619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403044839 + 403044840.

It is an arithmetic number, because the mean of its divisors is an integer number (403044840).

Almost surely, 2^806089679 is an apocalyptic number.

806089679 is a deficient number, since it is larger than the sum of its proper divisors (1).

806089679 is an equidigital number, since it uses as much as digits as its factorization.

806089679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 806089679 is about 28391.7184932508. The cubic root of 806089679 is about 930.6672973198.

The spelling of 806089679 in words is "eight hundred six million, eighty-nine thousand, six hundred seventy-nine".