6994778 has 32 divisors (see below), whose sum is σ = 12607488. Its totient is φ = 2847600.

The previous prime is 6994759. The next prime is 6994811. The reversal of 6994778 is 8774996.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30701 + ... + 30927.

It is an arithmetic number, because the mean of its divisors is an integer number (393984).

Almost surely, 2^6994778 is an apocalyptic number.

6994778 is a deficient number, since it is larger than the sum of its proper divisors (5612710).

6994778 is a wasteful number, since it uses less digits than its factorization.

6994778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338.

The product of its digits is 762048, while the sum is 50.

The square root of 6994778 is about 2644.7642617065. The cubic root of 6994778 is about 191.2455382216.

The spelling of 6994778 in words is "six million, nine hundred ninety-four thousand, seven hundred seventy-eight".