986990834 has 16 divisors (see below), whose sum is σ = 1608679680. Its totient is φ = 452440080.

The previous prime is 986990833. The next prime is 986990839. The reversal of 986990834 is 438099689.

986990834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 986990834.

It is not an unprimeable number, because it can be changed into a prime (986990833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417749 + ... + 420104.

It is an arithmetic number, because the mean of its divisors is an integer number (100542480).

Almost surely, 2^986990834 is an apocalyptic number.

986990834 is a deficient number, since it is larger than the sum of its proper divisors (621688846).

986990834 is a wasteful number, since it uses less digits than its factorization.

986990834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837905.

The product of its (nonzero) digits is 3359232, while the sum is 56.

The square root of 986990834 is about 31416.4102659741. The cubic root of 986990834 is about 995.6446699723.

The spelling of 986990834 in words is "nine hundred eighty-six million, nine hundred ninety thousand, eight hundred thirty-four".