6789994 has 8 divisors (see below), whose sum is σ = 10259748. Its totient is φ = 3370080.

The previous prime is 6789983. The next prime is 6790009. The reversal of 6789994 is 4999876.

It can be written as a sum of positive squares in 2 ways, for example, as 6786025 + 3969 = 2605^2 + 63^2 .

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

It is a super-2 number, since 2×6789994² = 92208037040072, which contains 22 as substring.

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, 12117 + ... + 12664.

Almost surely, 2^6789994 is an apocalyptic number.

6789994 is a deficient number, since it is larger than the sum of its proper divisors (3469754).

6789994 is a wasteful number, since it uses less digits than its factorization.

6789994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24920.

The product of its digits is 979776, while the sum is 52.

The square root of 6789994 is about 2605.7616928645. The cubic root of 6789994 is about 189.3606766643.

The spelling of 6789994 in words is "six million, seven hundred eighty-nine thousand, nine hundred ninety-four".