6999378 has 8 divisors (see below), whose sum is σ = 13998768. Its totient is φ = 2333124.

The previous prime is 6999373. The next prime is 6999379. The reversal of 6999378 is 8739996.

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

6999378 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 6999378.

It is not an unprimeable number, because it can be changed into a prime (6999373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583276 + ... + 583287.

It is an arithmetic number, because the mean of its divisors is an integer number (1749846).

Almost surely, 2^6999378 is an apocalyptic number.

6999378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6999378 is a wasteful number, since it uses less digits than its factorization.

6999378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166568.

The product of its digits is 734832, while the sum is 51.

The square root of 6999378 is about 2645.6337615021. The cubic root of 6999378 is about 191.2874521894.

The spelling of 6999378 in words is "six million, nine hundred ninety-nine thousand, three hundred seventy-eight".