855346909 has 8 divisors (see below), whose sum is σ = 885456000. Its totient is φ = 825278832.

The previous prime is 855346907. The next prime is 855346939. The reversal of 855346909 is 909643558.

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 855346909 - 2¹ = 855346907 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855346903) 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, 35752 + ... + 54670.

It is an arithmetic number, because the mean of its divisors is an integer number (110682000).

Almost surely, 2^855346909 is an apocalyptic number.

It is an amenable number.

855346909 is a deficient number, since it is larger than the sum of its proper divisors (30109091).

855346909 is a wasteful number, since it uses less digits than its factorization.

855346909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20507.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The square root of 855346909 is about 29246.3144515681. The cubic root of 855346909 is about 949.2503445129.

The spelling of 855346909 in words is "eight hundred fifty-five million, three hundred forty-six thousand, nine hundred nine".