8006978 has 16 divisors (see below), whose sum is σ = 13789440. Its totient is φ = 3415776.

The previous prime is 8006941. The next prime is 8006989. The reversal of 8006978 is 8796008.

It is a super-2 number, since 2×8006978² = 128223393384968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2150 + ... + 4542.

It is an arithmetic number, because the mean of its divisors is an integer number (861840).

Almost surely, 2^8006978 is an apocalyptic number.

8006978 is a deficient number, since it is larger than the sum of its proper divisors (5782462).

8006978 is a wasteful number, since it uses less digits than its factorization.

8006978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 8006978 is about 2829.6604036527. The cubic root of 8006978 is about 200.0581331011.

The spelling of 8006978 in words is "eight million, six thousand, nine hundred seventy-eight".