6222399 has 8 divisors (see below), whose sum is σ = 8315520. Its totient is φ = 4138776.

The previous prime is 6222383. The next prime is 6222407. The reversal of 6222399 is 9932226.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6222399 - 2⁴ = 6222383 is a prime.

6222399 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6222319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669 + ... + 3590.

It is an arithmetic number, because the mean of its divisors is an integer number (1039440).

Almost surely, 2^6222399 is an apocalyptic number.

6222399 is a deficient number, since it is larger than the sum of its proper divisors (2093121).

6222399 is a wasteful number, since it uses less digits than its factorization.

6222399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4749.

The product of its digits is 11664, while the sum is 33.

The square root of 6222399 is about 2494.4736919839. The cubic root of 6222399 is about 183.9300202535.

The spelling of 6222399 in words is "six million, two hundred twenty-two thousand, three hundred ninety-nine".