870030 has 48 divisors (see below), whose sum is σ = 2587104. Its totient is φ = 198720.

The previous prime is 870013. The next prime is 870031. The reversal of 870030 is 30078.

870030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 869985 and 870012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61 + ... + 1320.

It is an arithmetic number, because the mean of its divisors is an integer number (53898).

2⁸⁷⁰⁰³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 870030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1293552).

870030 is an abundant number, since it is smaller than the sum of its proper divisors (1717074).

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

870030 is a wasteful number, since it uses less digits than its factorization.

870030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401 (or 1398 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 870030 is about 932.7539868583. The cubic root of 870030 is about 95.4651243687.

The spelling of 870030 in words is "eight hundred seventy thousand, thirty".