6370421 has 4 divisors (see below), whose sum is σ = 6379212. Its totient is φ = 6361632.

The previous prime is 6370411. The next prime is 6370477. The reversal of 6370421 is 1240736.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1661521 + 4708900 = 1289^2 + 2170^2 .

It is a cyclic number.

It is not a de Polignac number, because 6370421 - 2²² = 2176117 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6370411) 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 3 ways as a sum of consecutive naturals, for example, 3200 + ... + 4793.

It is an arithmetic number, because the mean of its divisors is an integer number (1594803).

Almost surely, 2^6370421 is an apocalyptic number.

It is an amenable number.

6370421 is a deficient number, since it is larger than the sum of its proper divisors (8791).

6370421 is an equidigital number, since it uses as much as digits as its factorization.

6370421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8790.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 6370421 is about 2523.9692945834. The cubic root of 6370421 is about 185.3770833203.

The spelling of 6370421 in words is "six million, three hundred seventy thousand, four hundred twenty-one".