8978920834 has 16 divisors (see below), whose sum is σ = 14547464568. Its totient is φ = 4131816192.

The previous prime is 8978920823. The next prime is 8978920861. The reversal of 8978920834 is 4380298798.

8978920834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4977725809 + 4001195025 = 70553^2 + 63255^2 .

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, 503617 + ... + 521140.

Almost surely, 2^8978920834 is an apocalyptic number.

8978920834 is a deficient number, since it is larger than the sum of its proper divisors (5568543734).

8978920834 is a wasteful number, since it uses less digits than its factorization.

8978920834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025109.

The product of its (nonzero) digits is 6967296, while the sum is 58.

The square root of 8978920834 is about 94757.1677183315. The cubic root of 8978920834 is about 2078.4586116388.

The spelling of 8978920834 in words is "eight billion, nine hundred seventy-eight million, nine hundred twenty thousand, eight hundred thirty-four".