6978634 has 16 divisors (see below), whose sum is σ = 11360160. Its totient is φ = 3196080.

The previous prime is 6978617. The next prime is 6978641. The reversal of 6978634 is 4368796.

It is a happy 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, 2649 + ... + 4579.

It is an arithmetic number, because the mean of its divisors is an integer number (710010).

Almost surely, 2^6978634 is an apocalyptic number.

6978634 is a deficient number, since it is larger than the sum of its proper divisors (4381526).

6978634 is a wasteful number, since it uses less digits than its factorization.

6978634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085.

The product of its digits is 217728, while the sum is 43.

The square root of 6978634 is about 2641.7104307626. The cubic root of 6978634 is about 191.0982928376.

The spelling of 6978634 in words is "six million, nine hundred seventy-eight thousand, six hundred thirty-four".