855388 has 6 divisors (see below), whose sum is σ = 1496936. Its totient is φ = 427692.

The previous prime is 855377. The next prime is 855391. The reversal of 855388 is 883558.

855388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106920 + ... + 106927.

2⁸⁵⁵³⁸⁸ is an apocalyptic number.

It is an amenable number.

855388 is a deficient number, since it is larger than the sum of its proper divisors (641548).

855388 is a wasteful number, since it uses less digits than its factorization.

855388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213851 (or 213849 counting only the distinct ones).

The product of its digits is 38400, while the sum is 37.

The square root of 855388 is about 924.8718830195. The cubic root of 855388 is about 94.9265544981.

The spelling of 855388 in words is "eight hundred fifty-five thousand, three hundred eighty-eight".