6890084906 has 16 divisors (see below), whose sum is σ = 10545793704. Its totient is φ = 3375013824.

The previous prime is 6890084881. The next prime is 6890084911. The reversal of 6890084906 is 6094800986.

It can be written as a sum of positive squares in 4 ways, for example, as 6155187025 + 734897881 = 78455^2 + 27109^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23756 + ... + 119768.

Almost surely, 2^6890084906 is an apocalyptic number.

6890084906 is a deficient number, since it is larger than the sum of its proper divisors (3655708798).

6890084906 is a wasteful number, since it uses less digits than its factorization.

6890084906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96745.

The product of its (nonzero) digits is 746496, while the sum is 50.

The square root of 6890084906 is about 83006.5353210216. The cubic root of 6890084906 is about 1902.8659339860.

The spelling of 6890084906 in words is "six billion, eight hundred ninety million, eighty-four thousand, nine hundred six".