9999124 has 6 divisors (see below), whose sum is σ = 17498474. Its totient is φ = 4999560.

The previous prime is 9999083. The next prime is 9999161. The reversal of 9999124 is 4219999.

It can be written as a sum of positive squares in only one way, i.e., 5664400 + 4334724 = 2380^2 + 2082^2 .

It is a super-3 number, since 3×9999124³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1249887 + ... + 1249894.

Almost surely, 2^9999124 is an apocalyptic number.

It is an amenable number.

9999124 is a deficient number, since it is larger than the sum of its proper divisors (7499350).

9999124 is a wasteful number, since it uses less digits than its factorization.

9999124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2499785 (or 2499783 counting only the distinct ones).

The product of its digits is 52488, while the sum is 43.

The square root of 9999124 is about 3162.1391493734. The cubic root of 9999124 is about 215.4371778702.

The spelling of 9999124 in words is "nine million, nine hundred ninety-nine thousand, one hundred twenty-four".