8994197783 has 4 divisors (see below), whose sum is σ = 8996367648. Its totient is φ = 8992027920.

The previous prime is 8994197767. The next prime is 8994197809. The reversal of 8994197783 is 3877914998.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8994197783 - 2⁴ = 8994197767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8994197483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1078703 + ... + 1087008.

It is an arithmetic number, because the mean of its divisors is an integer number (2249091912).

Almost surely, 2^8994197783 is an apocalyptic number.

8994197783 is a deficient number, since it is larger than the sum of its proper divisors (2169865).

8994197783 is a wasteful number, since it uses less digits than its factorization.

8994197783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2169864.

The product of its digits is 27433728, while the sum is 65.

The square root of 8994197783 is about 94837.7445060773. The cubic root of 8994197783 is about 2079.6367233385.

The spelling of 8994197783 in words is "eight billion, nine hundred ninety-four million, one hundred ninety-seven thousand, seven hundred eighty-three".