855630 has 32 divisors (see below), whose sum is σ = 2282400. Its totient is φ = 228096.

The previous prime is 855619. The next prime is 855641. The reversal of 855630 is 36558.

855630 = 461² + 462² + ... + 464².

855630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (855619) and next prime (855641).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 855594 and 855603.

It is a congruent number.

It is an unprimeable number.

855630 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, 1315 + ... + 1854.

It is an arithmetic number, because the mean of its divisors is an integer number (71325).

2⁸⁵⁵⁶³⁰ is an apocalyptic number.

855630 is an abundant number, since it is smaller than the sum of its proper divisors (1426770).

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

855630 is a wasteful number, since it uses less digits than its factorization.

855630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3185 (or 3179 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 855630 is about 925.0027026988. The cubic root of 855630 is about 94.9355056253.

It can be divided in two parts, 855 and 630, that added together give a triangular number (1485 = T₅₄).

The spelling of 855630 in words is "eight hundred fifty-five thousand, six hundred thirty".