6790686 has 16 divisors (see below), whose sum is σ = 15521664. Its totient is φ = 1940184.

The previous prime is 6790649. The next prime is 6790691. The reversal of 6790686 is 6860976.

It is a happy number.

It is a super-2 number, since 2×6790686² = 92226832701192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 161683 = 6790686 / (6 + 7 + 9 + 0 + 6 + 8 + 6).

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, 80800 + ... + 80883.

It is an arithmetic number, because the mean of its divisors is an integer number (970104).

Almost surely, 2^6790686 is an apocalyptic number.

6790686 is an abundant number, since it is smaller than the sum of its proper divisors (8730978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6790686 is a wasteful number, since it uses less digits than its factorization.

6790686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161695.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 6790686 is about 2605.8944721535. The cubic root of 6790686 is about 189.3671093228.

The spelling of 6790686 in words is "six million, seven hundred ninety thousand, six hundred eighty-six".