9999272 has 16 divisors (see below), whose sum is σ = 18813600. Its totient is φ = 4982320.

The previous prime is 9999271. The next prime is 9999277. The reversal of 9999272 is 2729999.

It is not an unprimeable number, because it can be changed into a prime (9999271) 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, 479 + ... + 4497.

It is an arithmetic number, because the mean of its divisors is an integer number (1175850).

Almost surely, 2^9999272 is an apocalyptic number.

It is an amenable number.

9999272 is a deficient number, since it is larger than the sum of its proper divisors (8814328).

9999272 is a wasteful number, since it uses less digits than its factorization.

9999272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4336 (or 4332 counting only the distinct ones).

The product of its digits is 183708, while the sum is 47.

The square root of 9999272 is about 3162.1625511665. The cubic root of 9999272 is about 215.4382407815.

The spelling of 9999272 in words is "nine million, nine hundred ninety-nine thousand, two hundred seventy-two".