322861 has 12 divisors (see below), whose sum is σ = 410400. Its totient is φ = 251160.

The previous prime is 322859. The next prime is 322871. The reversal of 322861 is 168223.

It is not a de Polignac number, because 322861 - 2¹ = 322859 is a prime.

It is an Ulam number.

It is a Duffinian number.

322861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322871) 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 11 ways as a sum of consecutive naturals, for example, 240 + ... + 838.

It is an arithmetic number, because the mean of its divisors is an integer number (34200).

2³²²⁸⁶¹ is an apocalyptic number.

It is an amenable number.

322861 is a deficient number, since it is larger than the sum of its proper divisors (87539).

322861 is a wasteful number, since it uses less digits than its factorization.

322861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624 (or 617 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 322861 is about 568.2085884603. The cubic root of 322861 is about 68.6022767535.

The spelling of 322861 in words is "three hundred twenty-two thousand, eight hundred sixty-one".