8978994199 has 16 divisors (see below), whose sum is σ = 10394092800. Its totient is φ = 7597149120.

The previous prime is 8978994187. The next prime is 8978994209. The reversal of 8978994199 is 9914998798.

It is a cyclic number.

It is not a de Polignac number, because 8978994199 - 2⁷ = 8978994071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8978994139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 761652 + ... + 773350.

It is an arithmetic number, because the mean of its divisors is an integer number (649630800).

Almost surely, 2^8978994199 is an apocalyptic number.

8978994199 is a deficient number, since it is larger than the sum of its proper divisors (1415098601).

8978994199 is a wasteful number, since it uses less digits than its factorization.

8978994199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13110.

The product of its digits is 105815808, while the sum is 73.

The square root of 8978994199 is about 94757.5548386513. The cubic root of 8978994199 is about 2078.4642725159.

The spelling of 8978994199 in words is "eight billion, nine hundred seventy-eight million, nine hundred ninety-four thousand, one hundred ninety-nine".