6819982 has 16 divisors (see below), whose sum is σ = 11253312. Its totient is φ = 3080160.

The previous prime is 6819977. The next prime is 6820001. The reversal of 6819982 is 2899186.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1569 + ... + 4012.

It is an arithmetic number, because the mean of its divisors is an integer number (703332).

Almost surely, 2^6819982 is an apocalyptic number.

6819982 is a deficient number, since it is larger than the sum of its proper divisors (4433330).

6819982 is a wasteful number, since it uses less digits than its factorization.

6819982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5643.

The product of its digits is 62208, while the sum is 43.

The square root of 6819982 is about 2611.5095251597. The cubic root of 6819982 is about 189.6390376691.

It can be divided in two parts, 68 and 19982, that multiplied together give a triangular number (1358776 = T₁₆₄₈).

The spelling of 6819982 in words is "six million, eight hundred nineteen thousand, nine hundred eighty-two".