806711623 has 2 divisors, whose sum is σ = 806711624. Its totient is φ = 806711622.

The previous prime is 806711617. The next prime is 806711639. The reversal of 806711623 is 326117608.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-806711623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (806711023) 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, 403355811 + 403355812.

It is an arithmetic number, because the mean of its divisors is an integer number (403355812).

Almost surely, 2^806711623 is an apocalyptic number.

806711623 is a deficient number, since it is larger than the sum of its proper divisors (1).

806711623 is an equidigital number, since it uses as much as digits as its factorization.

806711623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 806711623 is about 28402.6692935717. The cubic root of 806711623 is about 930.9065900253.

The spelling of 806711623 in words is "eight hundred six million, seven hundred eleven thousand, six hundred twenty-three".