9938497 has 4 divisors (see below), whose sum is σ = 9956016. Its totient is φ = 9920980.

The previous prime is 9938471. The next prime is 9938519. The reversal of 9938497 is 7948399.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7948399 = 383 ⋅20753.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9938497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9938497.

It is not an unprimeable number, because it can be changed into a prime (9938407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7879 + ... + 9052.

It is an arithmetic number, because the mean of its divisors is an integer number (2489004).

Almost surely, 2^9938497 is an apocalyptic number.

It is an amenable number.

9938497 is a deficient number, since it is larger than the sum of its proper divisors (17519).

9938497 is a wasteful number, since it uses less digits than its factorization.

9938497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17518.

The product of its digits is 489888, while the sum is 49.

The square root of 9938497 is about 3152.5381837497. The cubic root of 9938497 is about 215.0008797512. Note that the first 3 decimals are identical.

The spelling of 9938497 in words is "nine million, nine hundred thirty-eight thousand, four hundred ninety-seven".