855770 has 8 divisors (see below), whose sum is σ = 1540404. Its totient is φ = 342304.

The previous prime is 855739. The next prime is 855781. The reversal of 855770 is 77558.

It can be written as a sum of positive squares in 2 ways, for example, as 833569 + 22201 = 913^2 + 149^2 .

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

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 42779 + ... + 42798.

2⁸⁵⁵⁷⁷⁰ is an apocalyptic number.

855770 is a deficient number, since it is larger than the sum of its proper divisors (684634).

855770 is a wasteful number, since it uses less digits than its factorization.

855770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85584.

The product of its (nonzero) digits is 9800, while the sum is 32.

The square root of 855770 is about 925.0783750580. The cubic root of 855770 is about 94.9406831926.

The spelling of 855770 in words is "eight hundred fifty-five thousand, seven hundred seventy".