6352421 has 8 divisors (see below), whose sum is σ = 6697080. Its totient is φ = 6016192.

The previous prime is 6352399. The next prime is 6352429. The reversal of 6352421 is 1242536.

It can be written as a sum of positive squares in 4 ways, for example, as 2292196 + 4060225 = 1514^2 + 2015^2 .

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 6352421 - 2¹⁸ = 6090277 is a prime.

It is a super-2 number, since 2×6352421² = 80706505122482, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6352429) 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 7 ways as a sum of consecutive naturals, for example, 530 + ... + 3603.

It is an arithmetic number, because the mean of its divisors is an integer number (837135).

Almost surely, 2^6352421 is an apocalyptic number.

It is an amenable number.

6352421 is a deficient number, since it is larger than the sum of its proper divisors (344659).

6352421 is a wasteful number, since it uses less digits than its factorization.

6352421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4215.

The product of its digits is 1440, while the sum is 23.

The square root of 6352421 is about 2520.4009601649. The cubic root of 6352421 is about 185.2023206578.

Adding to 6352421 its reverse (1242536), we get a palindrome (7594957).

The spelling of 6352421 in words is "six million, three hundred fifty-two thousand, four hundred twenty-one".