6354021 has 4 divisors (see below), whose sum is σ = 8472032. Its totient is φ = 4236012.

The previous prime is 6354017. The next prime is 6354043. The reversal of 6354021 is 1204536.

It is a happy number.

6354021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 6354021 - 2² = 6354017 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6354001) 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 3 ways as a sum of consecutive naturals, for example, 1059001 + ... + 1059006.

It is an arithmetic number, because the mean of its divisors is an integer number (2118008).

Almost surely, 2^6354021 is an apocalyptic number.

It is an amenable number.

6354021 is a deficient number, since it is larger than the sum of its proper divisors (2118011).

6354021 is a wasteful number, since it uses less digits than its factorization.

6354021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2118010.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 6354021 is about 2520.7183499947. The cubic root of 6354021 is about 185.2178684749.

Adding to 6354021 its reverse (1204536), we get a palindrome (7558557).

It can be divided in two parts, 635 and 4021, that added together give a triangular number (4656 = T₉₆).

The spelling of 6354021 in words is "six million, three hundred fifty-four thousand, twenty-one".