6978330 has 48 divisors (see below), whose sum is σ = 19215144. Its totient is φ = 1751040.

The previous prime is 6978319. The next prime is 6978371. The reversal of 6978330 is 338796.

It can be written as a sum of positive squares in 4 ways, for example, as 5919489 + 1058841 = 2433^2 + 1029^2 .

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 751 + ... + 3810.

Almost surely, 2^6978330 is an apocalyptic number.

6978330 is an abundant number, since it is smaller than the sum of its proper divisors (12236814).

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

6978330 is a wasteful number, since it uses less digits than its factorization.

6978330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4591 (or 4588 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 6978330 is about 2641.6528916570. The cubic root of 6978330 is about 191.0955179524.

The spelling of 6978330 in words is "six million, nine hundred seventy-eight thousand, three hundred thirty".