9938257 has 8 divisors (see below), whose sum is σ = 11431616. Its totient is φ = 8463312.

The previous prime is 9938249. The next prime is 9938263. The reversal of 9938257 is 7528399.

It is a happy number.

9938257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9938257 - 2³ = 9938249 is a prime.

It is the 3153-rd Hogben number.

9938257 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9938207) by changing a digit.

It is a nontrivial repunit in base 3152.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3423 + ... + 5620.

It is an arithmetic number, because the mean of its divisors is an integer number (1428952).

Almost surely, 2^9938257 is an apocalyptic number.

It is an amenable number.

9938257 is a deficient number, since it is larger than the sum of its proper divisors (1493359).

9938257 is a wasteful number, since it uses less digits than its factorization.

9938257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9207.

The product of its digits is 136080, while the sum is 43.

The square root of 9938257 is about 3152.5001189532. The cubic root of 9938257 is about 214.9991490862. Note that the first 3 decimals are identical.

The spelling of 9938257 in words is "nine million, nine hundred thirty-eight thousand, two hundred fifty-seven".