855030 has 32 divisors (see below), whose sum is σ = 2239488. Its totient is φ = 207200.

The previous prime is 854999. The next prime is 855031. The reversal of 855030 is 30558.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 854988 and 855006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855031) by changing a digit.

855030 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 966 + ... + 1625.

It is an arithmetic number, because the mean of its divisors is an integer number (69984).

2⁸⁵⁵⁰³⁰ is an apocalyptic number.

855030 is an abundant number, since it is smaller than the sum of its proper divisors (1384458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

855030 is a wasteful number, since it uses less digits than its factorization.

855030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 855030 is about 924.6783224452. The cubic root of 855030 is about 94.9133096515.

Adding to 855030 its reverse (30558), we get a palindrome (885588).

It can be divided in two parts, 85 and 5030, that added together give a palindrome (5115).

The spelling of 855030 in words is "eight hundred fifty-five thousand, thirty".