867220 has 24 divisors (see below), whose sum is σ = 1840608. Its totient is φ = 343200.

The previous prime is 867211. The next prime is 867227. The reversal of 867220 is 22768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867227) 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 7 ways as a sum of consecutive naturals, for example, 2455 + ... + 2785.

It is an arithmetic number, because the mean of its divisors is an integer number (76692).

2⁸⁶⁷²²⁰ is an apocalyptic number.

It is an amenable number.

867220 is an abundant number, since it is smaller than the sum of its proper divisors (973388).

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

867220 is a wasteful number, since it uses less digits than its factorization.

867220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 867220 is about 931.2464765034. The cubic root of 867220 is about 95.3622366054.

Adding to 867220 its reverse (22768), we get a palindrome (889988).

The spelling of 867220 in words is "eight hundred sixty-seven thousand, two hundred twenty".