6364021 has 8 divisors (see below), whose sum is σ = 6796800. Its totient is φ = 5945520.

The previous prime is 6364019. The next prime is 6364049. The reversal of 6364021 is 1204636.

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

It is a cyclic number.

It is not a de Polignac number, because 6364021 - 2¹ = 6364019 is a prime.

It is a Duffinian number.

6364021 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6363983 and 6364001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6364621) 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, 2641 + ... + 4438.

It is an arithmetic number, because the mean of its divisors is an integer number (849600).

Almost surely, 2^6364021 is an apocalyptic number.

It is an amenable number.

6364021 is a deficient number, since it is larger than the sum of its proper divisors (432779).

6364021 is a wasteful number, since it uses less digits than its factorization.

6364021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7139.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 6364021 is about 2522.7011317237. The cubic root of 6364021 is about 185.3149832455.

Adding to 6364021 its reverse (1204636), we get a palindrome (7568657).

The spelling of 6364021 in words is "six million, three hundred sixty-four thousand, twenty-one".