6222861 has 24 divisors (see below), whose sum is σ = 9563840. Its totient is φ = 3888000.

The previous prime is 6222829. The next prime is 6222869. The reversal of 6222861 is 1682226.

It is not a de Polignac number, because 6222861 - 2⁵ = 6222829 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

6222861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6222869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25701 + ... + 25941.

Almost surely, 2^6222861 is an apocalyptic number.

It is an amenable number.

6222861 is a deficient number, since it is larger than the sum of its proper divisors (3340979).

6222861 is a wasteful number, since it uses less digits than its factorization.

6222861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417 (or 414 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 6222861 is about 2494.5662949699. The cubic root of 6222861 is about 183.9345722795.

The spelling of 6222861 in words is "six million, two hundred twenty-two thousand, eight hundred sixty-one".