6834978 has 12 divisors (see below), whose sum is σ = 14809158. Its totient is φ = 2278320.

The previous prime is 6834959. The next prime is 6834991. The reversal of 6834978 is 8794386.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4297329 + 2537649 = 2073^2 + 1593^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 189843 + ... + 189878.

Almost surely, 2^6834978 is an apocalyptic number.

6834978 is an abundant number, since it is smaller than the sum of its proper divisors (7974180).

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

6834978 is a wasteful number, since it uses less digits than its factorization.

6834978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379729 (or 379726 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 6834978 is about 2614.3790849837. The cubic root of 6834978 is about 189.7779307622. Note that the first 3 decimals are identical.

The spelling of 6834978 in words is "six million, eight hundred thirty-four thousand, nine hundred seventy-eight".