978863935 has 48 divisors (see below), whose sum is σ = 1397001600. Its totient is φ = 656377344.

The previous prime is 978863933. The next prime is 978863947. The reversal of 978863935 is 539368879.

It is not a de Polignac number, because 978863935 - 2¹ = 978863933 is a prime.

Its product of digits (9797760) is a multiple of the sum of its prime factors (560).

It is a self number, because there is not a number n which added to its sum of digits gives 978863935.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978863933) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 4095546 + ... + 4095784.

It is an arithmetic number, because the mean of its divisors is an integer number (29104200).

Almost surely, 2^978863935 is an apocalyptic number.

978863935 is a deficient number, since it is larger than the sum of its proper divisors (418137665).

978863935 is a wasteful number, since it uses less digits than its factorization.

978863935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560 (or 553 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 58.

The square root of 978863935 is about 31286.8012906401. The cubic root of 978863935 is about 992.9044167799.

The spelling of 978863935 in words is "nine hundred seventy-eight million, eight hundred sixty-three thousand, nine hundred thirty-five".