870222 has 8 divisors (see below), whose sum is σ = 1740456. Its totient is φ = 290072.

The previous prime is 870211. The next prime is 870223. The reversal of 870222 is 222078.

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

870222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870223) by changing a digit.

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, 72513 + ... + 72524.

It is an arithmetic number, because the mean of its divisors is an integer number (217557).

2⁸⁷⁰²²² is an apocalyptic number.

870222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

870222 is a wasteful number, since it uses less digits than its factorization.

870222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145042.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 870222 is about 932.8569022096. The cubic root of 870222 is about 95.4721463318.

The spelling of 870222 in words is "eight hundred seventy thousand, two hundred twenty-two".