6994947 has 4 divisors (see below), whose sum is σ = 9326600. Its totient is φ = 4663296.

The previous prime is 6994927. The next prime is 6994951. The reversal of 6994947 is 7494996.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6994947 - 2²⁰ = 5946371 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6994896 and 6994905.

It is not an unprimeable number, because it can be changed into a prime (6994927) by changing a digit.

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, 1165822 + ... + 1165827.

It is an arithmetic number, because the mean of its divisors is an integer number (2331650).

Almost surely, 2^6994947 is an apocalyptic number.

6994947 is a deficient number, since it is larger than the sum of its proper divisors (2331653).

6994947 is a wasteful number, since it uses less digits than its factorization.

6994947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331652.

The product of its digits is 489888, while the sum is 48.

The square root of 6994947 is about 2644.7962114310. The cubic root of 6994947 is about 191.2470784295.

It can be divided in two parts, 69949 and 47, that added together give a palindrome (69996).

The spelling of 6994947 in words is "six million, nine hundred ninety-four thousand, nine hundred forty-seven".