859549349 has 8 divisors (see below), whose sum is σ = 864833112. Its totient is φ = 854279680.

The previous prime is 859549343. The next prime is 859549351. The reversal of 859549349 is 943945958.

It can be written as a sum of positive squares in 4 ways, for example, as 4225 + 859545124 = 65^2 + 29318^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 859549349 - 2⁴ = 859549333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 859549294 and 859549303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (859549343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135059 + ... + 141279.

It is an arithmetic number, because the mean of its divisors is an integer number (108104139).

Almost surely, 2^859549349 is an apocalyptic number.

It is an amenable number.

859549349 is a deficient number, since it is larger than the sum of its proper divisors (5283763).

859549349 is a wasteful number, since it uses less digits than its factorization.

859549349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7047.

The product of its digits is 6998400, while the sum is 56.

The square root of 859549349 is about 29318.0720546219. The cubic root of 859549349 is about 950.8024057236.

The spelling of 859549349 in words is "eight hundred fifty-nine million, five hundred forty-nine thousand, three hundred forty-nine".