6207421 has 18 divisors (see below), whose sum is σ = 7182266. Its totient is φ = 5359200.

The previous prime is 6207419. The next prime is 6207427. The reversal of 6207421 is 1247026.

6207421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 81796 + 6125625 = 286^2 + 2475^2 .

It is not a de Polignac number, because 6207421 - 2¹ = 6207419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6207392 and 6207401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6207427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 101731 + ... + 101791.

Almost surely, 2^6207421 is an apocalyptic number.

6207421 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

6207421 is a deficient number, since it is larger than the sum of its proper divisors (974845).

6207421 is a wasteful number, since it uses less digits than its factorization.

6207421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 6207421 is about 2491.4696466142. The cubic root of 6207421 is about 183.7823217396.

The spelling of 6207421 in words is "six million, two hundred seven thousand, four hundred twenty-one".