6799945 has 8 divisors (see below), whose sum is σ = 8177544. Its totient is φ = 5428224.

The previous prime is 6799937. The next prime is 6799979. The reversal of 6799945 is 5499976.

It can be written as a sum of positive squares in 4 ways, for example, as 1565001 + 5234944 = 1251^2 + 2288^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6799945 - 2³ = 6799937 is a prime.

It is a d-powerful number, because it can be written as 6⁴ + 7⁴ + 9² + 9⁵ + 9⁷ + 4⁵ + 5⁹ .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1707 + ... + 4063.

It is an arithmetic number, because the mean of its divisors is an integer number (1022193).

Almost surely, 2^6799945 is an apocalyptic number.

It is an amenable number.

6799945 is a deficient number, since it is larger than the sum of its proper divisors (1377599).

6799945 is a wasteful number, since it uses less digits than its factorization.

6799945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939.

The product of its digits is 612360, while the sum is 49.

The square root of 6799945 is about 2607.6704162911. The cubic root of 6799945 is about 189.4531366539.

It can be divided in two parts, 6799 and 945, that added together give a square (7744 = 88²).

The spelling of 6799945 in words is "six million, seven hundred ninety-nine thousand, nine hundred forty-five".