6298021 has 4 divisors (see below), whose sum is σ = 6571872. Its totient is φ = 6024172.

The previous prime is 6298009. The next prime is 6298031. The reversal of 6298021 is 1208926.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6298021 - 2⁹ = 6297509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6298031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136891 + ... + 136936.

It is an arithmetic number, because the mean of its divisors is an integer number (1642968).

Almost surely, 2^6298021 is an apocalyptic number.

It is an amenable number.

6298021 is a deficient number, since it is larger than the sum of its proper divisors (273851).

6298021 is a wasteful number, since it uses less digits than its factorization.

6298021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273850.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 6298021 is about 2509.5858224018. The cubic root of 6298021 is about 184.6721341608.

It can be divided in two parts, 62980 and 21, that added together give a square (63001 = 251²).

The spelling of 6298021 in words is "six million, two hundred ninety-eight thousand, twenty-one".