6281421 has 4 divisors (see below), whose sum is σ = 8375232. Its totient is φ = 4187612.

The previous prime is 6281383. The next prime is 6281459. The reversal of 6281421 is 1241826.

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 an interprime number because it is at equal distance from previous prime (6281383) and next prime (6281459).

It is a cyclic number.

It is not a de Polignac number, because 6281421 - 2¹⁰ = 6280397 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 6281391 and 6281400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6281491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1046901 + ... + 1046906.

It is an arithmetic number, because the mean of its divisors is an integer number (2093808).

Almost surely, 2^6281421 is an apocalyptic number.

It is an amenable number.

6281421 is a deficient number, since it is larger than the sum of its proper divisors (2093811).

6281421 is a wasteful number, since it uses less digits than its factorization.

6281421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093810.

The product of its digits is 768, while the sum is 24.

The square root of 6281421 is about 2506.2763215575. The cubic root of 6281421 is about 184.5097416291.

It can be divided in two parts, 62814 and 21, that added together give a triangular number (62835 = T₃₅₄).

The spelling of 6281421 in words is "six million, two hundred eighty-one thousand, four hundred twenty-one".