6422784 has 36 divisors (see below), whose sum is σ = 17096016. Its totient is φ = 2140672.

The previous prime is 6422777. The next prime is 6422803. The reversal of 6422784 is 4872246.

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, 3414 + ... + 4949.

Almost surely, 2^6422784 is an apocalyptic number.

6422784 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6422784 is an abundant number, since it is smaller than the sum of its proper divisors (10673232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6422784 is an equidigital number, since it uses as much as digits as its factorization.

6422784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8382 (or 8368 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The square root of 6422784 is about 2534.3212108965. The cubic root of 6422784 is about 185.8836131631.

The spelling of 6422784 in words is "six million, four hundred twenty-two thousand, seven hundred eighty-four".