855788 has 6 divisors (see below), whose sum is σ = 1497636. Its totient is φ = 427892.

The previous prime is 855787. The next prime is 855821. The reversal of 855788 is 887558.

It is a happy number.

It is a super-3 number, since 3×855788³ = 1880268333931991616, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (855781) 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, 106970 + ... + 106977.

It is an arithmetic number, because the mean of its divisors is an integer number (249606).

2⁸⁵⁵⁷⁸⁸ is an apocalyptic number.

It is an amenable number.

855788 is a deficient number, since it is larger than the sum of its proper divisors (641848).

855788 is a wasteful number, since it uses less digits than its factorization.

855788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213951 (or 213949 counting only the distinct ones).

The product of its digits is 89600, while the sum is 41.

The square root of 855788 is about 925.0881039123. The cubic root of 855788 is about 94.9413488389.

The spelling of 855788 in words is "eight hundred fifty-five thousand, seven hundred eighty-eight".