870830 has 8 divisors (see below), whose sum is σ = 1567512. Its totient is φ = 348328.

The previous prime is 870823. The next prime is 870833. The reversal of 870830 is 38078.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 870830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870833) by changing a digit.

870830 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 3 ways as a sum of consecutive naturals, for example, 43532 + ... + 43551.

It is an arithmetic number, because the mean of its divisors is an integer number (195939).

2⁸⁷⁰⁸³⁰ is an apocalyptic number.

870830 is a deficient number, since it is larger than the sum of its proper divisors (696682).

870830 is a wasteful number, since it uses less digits than its factorization.

870830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87090.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 870830 is about 933.1827259439. The cubic root of 870830 is about 95.4943757367.

The spelling of 870830 in words is "eight hundred seventy thousand, eight hundred thirty".