609822 has 32 divisors (see below), whose sum is σ = 1416960. Its totient is φ = 194040.

The previous prime is 609821. The next prime is 609859. The reversal of 609822 is 228906.

609822 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 (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 997 + ... + 1487.

It is an arithmetic number, because the mean of its divisors is an integer number (44280).

2⁶⁰⁹⁸²² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 609822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (708480).

609822 is an abundant number, since it is smaller than the sum of its proper divisors (807138).

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

609822 is a wasteful number, since it uses less digits than its factorization.

609822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 609822 is about 780.9110064534. The cubic root of 609822 is about 84.8010108756.

It can be divided in two parts, 609 and 822, that added together give a triangular number (1431 = T₅₃).

The spelling of 609822 in words is "six hundred nine thousand, eight hundred twenty-two".