6422786 has 4 divisors (see below), whose sum is σ = 9634182. Its totient is φ = 3211392.

The previous prime is 6422777. The next prime is 6422803. The reversal of 6422786 is 6872246.

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

It can be written as a sum of positive squares in only one way, i.e., 4515625 + 1907161 = 2125^2 + 1381^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1605695 + ... + 1605698.

Almost surely, 2^6422786 is an apocalyptic number.

6422786 is a deficient number, since it is larger than the sum of its proper divisors (3211396).

6422786 is a wasteful number, since it uses less digits than its factorization.

6422786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3211395.

The product of its digits is 32256, while the sum is 35.

The square root of 6422786 is about 2534.3216054795. The cubic root of 6422786 is about 185.8836324572.

The spelling of 6422786 in words is "six million, four hundred twenty-two thousand, seven hundred eighty-six".