6022821 has 8 divisors (see below), whose sum is σ = 9177664. Its totient is φ = 3441600.

The previous prime is 6022801. The next prime is 6022843. The reversal of 6022821 is 1282206.

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

It is not a de Polignac number, because 6022821 - 2²² = 1828517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 286801 = 6022821 / (6 + 0 + 2 + 2 + 8 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6022801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143380 + ... + 143421.

It is an arithmetic number, because the mean of its divisors is an integer number (1147208).

Almost surely, 2^6022821 is an apocalyptic number.

It is an amenable number.

6022821 is a deficient number, since it is larger than the sum of its proper divisors (3154843).

6022821 is a wasteful number, since it uses less digits than its factorization.

6022821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286811.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 6022821 is about 2454.1436388280. The cubic root of 6022821 is about 181.9421484205.

The spelling of 6022821 in words is "six million, twenty-two thousand, eight hundred twenty-one".