6994478 has 8 divisors (see below), whose sum is σ = 10505280. Its totient is φ = 3492720.

The previous prime is 6994469. The next prime is 6994487. The reversal of 6994478 is 8744996.

It is an interprime number because it is at equal distance from previous prime (6994469) and next prime (6994487).

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

It is a Curzon number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 218 + ... + 3746.

It is an arithmetic number, because the mean of its divisors is an integer number (1313160).

Almost surely, 2^6994478 is an apocalyptic number.

6994478 is a deficient number, since it is larger than the sum of its proper divisors (3510802).

6994478 is a wasteful number, since it uses less digits than its factorization.

6994478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4522.

The product of its digits is 435456, while the sum is 47.

The square root of 6994478 is about 2644.7075452685. The cubic root of 6994478 is about 191.2428040638.

The spelling of 6994478 in words is "six million, nine hundred ninety-four thousand, four hundred seventy-eight".