6422215 has 4 divisors (see below), whose sum is σ = 7706664. Its totient is φ = 5137768.

The previous prime is 6422203. The next prime is 6422261. The reversal of 6422215 is 5122246.

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

It is a cyclic number.

It is not a de Polignac number, because 6422215 - 2⁵ = 6422183 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642217 + ... + 642226.

It is an arithmetic number, because the mean of its divisors is an integer number (1926666).

Almost surely, 2^6422215 is an apocalyptic number.

6422215 is a deficient number, since it is larger than the sum of its proper divisors (1284449).

6422215 is a wasteful number, since it uses less digits than its factorization.

6422215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284448.

The product of its digits is 960, while the sum is 22.

The square root of 6422215 is about 2534.2089495541. The cubic root of 6422215 is about 185.8781238042.

The spelling of 6422215 in words is "six million, four hundred twenty-two thousand, two hundred fifteen".