6364421 has 4 divisors (see below), whose sum is σ = 7273632. Its totient is φ = 5455212.

The previous prime is 6364381. The next prime is 6364433. The reversal of 6364421 is 1244636.

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 not a de Polignac number, because 6364421 - 2¹⁴ = 6348037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6364441) 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, 454595 + ... + 454608.

It is an arithmetic number, because the mean of its divisors is an integer number (1818408).

Almost surely, 2^6364421 is an apocalyptic number.

It is an amenable number.

6364421 is a deficient number, since it is larger than the sum of its proper divisors (909211).

6364421 is an equidigital number, since it uses as much as digits as its factorization.

6364421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909210.

The product of its digits is 3456, while the sum is 26.

The square root of 6364421 is about 2522.7804105788. The cubic root of 6364421 is about 185.3188657196.

The spelling of 6364421 in words is "six million, three hundred sixty-four thousand, four hundred twenty-one".