806670533 has 2 divisors, whose sum is σ = 806670534. Its totient is φ = 806670532.

The previous prime is 806670509. The next prime is 806670551. The reversal of 806670533 is 335076608.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 795634849 + 11035684 = 28207^2 + 3322^2 .

It is a cyclic number.

It is not a de Polignac number, because 806670533 - 2²⁸ = 538235077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (806670503) 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, 403335266 + 403335267.

It is an arithmetic number, because the mean of its divisors is an integer number (403335267).

Almost surely, 2^806670533 is an apocalyptic number.

It is an amenable number.

806670533 is a deficient number, since it is larger than the sum of its proper divisors (1).

806670533 is an equidigital number, since it uses as much as digits as its factorization.

806670533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 806670533 is about 28401.9459368544. The cubic root of 806670533 is about 930.8907844593.

The spelling of 806670533 in words is "eight hundred six million, six hundred seventy thousand, five hundred thirty-three".