859306849 has 2 divisors, whose sum is σ = 859306850. Its totient is φ = 859306848.

The previous prime is 859306807. The next prime is 859306873. The reversal of 859306849 is 948603958.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 852231249 + 7075600 = 29193^2 + 2660^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-859306849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 859306796 and 859306805.

It is not a weakly prime, because it can be changed into another prime (859307849) 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, 429653424 + 429653425.

It is an arithmetic number, because the mean of its divisors is an integer number (429653425).

Almost surely, 2^859306849 is an apocalyptic number.

It is an amenable number.

859306849 is a deficient number, since it is larger than the sum of its proper divisors (1).

859306849 is an equidigital number, since it uses as much as digits as its factorization.

859306849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The square root of 859306849 is about 29313.9360884887. The cubic root of 859306849 is about 950.7129824035.

The spelling of 859306849 in words is "eight hundred fifty-nine million, three hundred six thousand, eight hundred forty-nine".