6428786 has 16 divisors (see below), whose sum is σ = 11868864. Its totient is φ = 2543184.

The previous prime is 6428777. The next prime is 6428789. The reversal of 6428786 is 6878246.

6428786 = T₉₈₈ + T₉₈₉ + ... + T₁₀₀₀.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6428789) 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, 17480 + ... + 17843.

It is an arithmetic number, because the mean of its divisors is an integer number (741804).

Almost surely, 2^6428786 is an apocalyptic number.

6428786 is a deficient number, since it is larger than the sum of its proper divisors (5440078).

6428786 is a wasteful number, since it uses less digits than its factorization.

6428786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35345.

The product of its digits is 129024, while the sum is 41.

The square root of 6428786 is about 2535.5050778888. The cubic root of 6428786 is about 185.9414969976.

The spelling of 6428786 in words is "six million, four hundred twenty-eight thousand, seven hundred eighty-six".