9999768 has 32 divisors (see below), whose sum is σ = 25677360. Its totient is φ = 3242880.

The previous prime is 9999761. The next prime is 9999823. The reversal of 9999768 is 8679999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4743 + ... + 6518.

Almost surely, 2^9999768 is an apocalyptic number.

It is an amenable number.

9999768 is an abundant number, since it is smaller than the sum of its proper divisors (15677592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9999768 is a wasteful number, since it uses less digits than its factorization.

9999768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11307 (or 11303 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 57.

The square root of 9999768 is about 3162.2409775348. The cubic root of 9999768 is about 215.4418028941.

The spelling of 9999768 in words is "nine million, nine hundred ninety-nine thousand, seven hundred sixty-eight".