6978790 has 32 divisors (see below), whose sum is σ = 15462720. Its totient is φ = 2208384.

The previous prime is 6978779. The next prime is 6978793. The reversal of 6978790 is 978796.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 6978790.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6978793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2925 + ... + 4744.

It is an arithmetic number, because the mean of its divisors is an integer number (483210).

Almost surely, 2^6978790 is an apocalyptic number.

6978790 is an abundant number, since it is smaller than the sum of its proper divisors (8483930).

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

6978790 is a wasteful number, since it uses less digits than its factorization.

6978790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7696.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 6978790 is about 2641.7399569223. The cubic root of 6978790 is about 191.0997167605.

The spelling of 6978790 in words is "six million, nine hundred seventy-eight thousand, seven hundred ninety".