8893244978 has 6 divisors (see below), whose sum is σ = 13340067519. Its totient is φ = 4446555806.

The previous prime is 8893244953. The next prime is 8893244981. The reversal of 8893244978 is 8794423988.

It can be written as a sum of positive squares in only one way, i.e., 4446622489 + 4446622489 = 66683^2 + 66683^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=66683.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8893244978.

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 2 ways as a sum of consecutive naturals, for example, 100025 + ... + 166707.

Almost surely, 2^8893244978 is an apocalyptic number.

8893244978 is a deficient number, since it is larger than the sum of its proper divisors (4446822541).

8893244978 is an frugal number, since it uses more digits than its factorization.

8893244978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133368 (or 66685 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 62.

The square root of 8893244978 is about 94304.0029797251. The cubic root of 8893244978 is about 2071.8266665835.

The spelling of 8893244978 in words is "eight billion, eight hundred ninety-three million, two hundred forty-four thousand, nine hundred seventy-eight".