9997508 has 12 divisors (see below), whose sum is σ = 17594640. Its totient is φ = 4970472.

The previous prime is 9997483. The next prime is 9997517. The reversal of 9997508 is 8057999.

It is a super-3 number, since 3×9997508³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6266 + ... + 7697.

It is an arithmetic number, because the mean of its divisors is an integer number (1466220).

Almost surely, 2^9997508 is an apocalyptic number.

It is an amenable number.

9997508 is a deficient number, since it is larger than the sum of its proper divisors (7597132).

9997508 is a wasteful number, since it uses less digits than its factorization.

9997508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14146 (or 14144 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 47.

The square root of 9997508 is about 3161.8836158214. The cubic root of 9997508 is about 215.4255713456.

It can be divided in two parts, 999750 and 8, that multiplied together give a triangular number (7998000 = T₃₉₉₉).

The spelling of 9997508 in words is "nine million, nine hundred ninety-seven thousand, five hundred eight".