9997756 has 6 divisors (see below), whose sum is σ = 17496080. Its totient is φ = 4998876.

The previous prime is 9997753. The next prime is 9997777. The reversal of 9997756 is 6577999.

9997756 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9997753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1249716 + ... + 1249723.

Almost surely, 2^9997756 is an apocalyptic number.

It is an amenable number.

9997756 is a deficient number, since it is larger than the sum of its proper divisors (7498324).

9997756 is a wasteful number, since it uses less digits than its factorization.

9997756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499443 (or 2499441 counting only the distinct ones).

The product of its digits is 1071630, while the sum is 52.

The square root of 9997756 is about 3161.9228327080. The cubic root of 9997756 is about 215.4273526261.

The spelling of 9997756 in words is "nine million, nine hundred ninety-seven thousand, seven hundred fifty-six".