6303421 has 8 divisors (see below), whose sum is σ = 6660800. Its totient is φ = 5965164.

The previous prime is 6303419. The next prime is 6303433. The reversal of 6303421 is 1243036.

It is not a de Polignac number, because 6303421 - 2¹ = 6303419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6303461) 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, 6400 + ... + 7318.

It is an arithmetic number, because the mean of its divisors is an integer number (832600).

Almost surely, 2^6303421 is an apocalyptic number.

It is an amenable number.

6303421 is a deficient number, since it is larger than the sum of its proper divisors (357379).

6303421 is an frugal number, since it uses more digits than its factorization.

6303421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976 (or 938 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 6303421 is about 2510.6614666259. The cubic root of 6303421 is about 184.7248991298.

Adding to 6303421 its reverse (1243036), we get a palindrome (7546457).

It can be divided in two parts, 6303 and 421, that added together give a square (6724 = 82²).

The spelling of 6303421 in words is "six million, three hundred three thousand, four hundred twenty-one".