9788799 has 4 divisors (see below), whose sum is σ = 13051736. Its totient is φ = 6525864.

The previous prime is 9788773. The next prime is 9788809. The reversal of 9788799 is 9978879.

It is a happy number.

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

It is not a de Polignac number, because 9788799 - 2⁸ = 9788543 is a prime.

It is a Duffinian number.

9788799 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9788759) 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, 1631464 + ... + 1631469.

It is an arithmetic number, because the mean of its divisors is an integer number (3262934).

Almost surely, 2^9788799 is an apocalyptic number.

9788799 is a deficient number, since it is larger than the sum of its proper divisors (3262937).

9788799 is a wasteful number, since it uses less digits than its factorization.

9788799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3262936.

The product of its digits is 2286144, while the sum is 57.

The square root of 9788799 is about 3128.7056429137. The cubic root of 9788799 is about 213.9159348969.

The spelling of 9788799 in words is "nine million, seven hundred eighty-eight thousand, seven hundred ninety-nine".