6878290 has 8 divisors (see below), whose sum is σ = 12380940. Its totient is φ = 2751312.

The previous prime is 6878273. The next prime is 6878321. The reversal of 6878290 is 928786.

It can be written as a sum of positive squares in 2 ways, for example, as 6869641 + 8649 = 2621^2 + 93^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343905 + ... + 343924.

Almost surely, 2^6878290 is an apocalyptic number.

6878290 is a deficient number, since it is larger than the sum of its proper divisors (5502650).

6878290 is a wasteful number, since it uses less digits than its factorization.

6878290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687836.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 6878290 is about 2622.6494237698. The cubic root of 6878290 is about 190.1779496279.

The spelling of 6878290 in words is "six million, eight hundred seventy-eight thousand, two hundred ninety".