9115397 has 4 divisors (see below), whose sum is σ = 9204000.
Its totient is φ = 9026796.
The previous prime is 9115339. The next prime is 9115399. The reversal of 9115397 is 7935119.
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.
It is a cyclic number.
It is not a de Polignac number, because 9115397 - 222 = 4921093 is a prime.
It is an Ulam number.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (9115399) 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, 44147 + ... + 44352.
It is an arithmetic number, because the mean of its divisors is an integer number (2301000).
Almost surely, 29115397 is an apocalyptic number.
It is an amenable number.
9115397 is a deficient number, since it is larger than the sum of its proper divisors (88603).
9115397 is a wasteful number, since it uses less digits than its factorization.
9115397 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 88602.
The product of its digits is 8505, while the sum is 35.
The square root of 9115397 is about 3019.1715751179.
The cubic root of 9115397 is about 208.8936296247.
The spelling of 9115397 in words is "nine million, one hundred fifteen thousand, three hundred ninety-seven".