9997375 has 8 divisors (see below), whose sum is σ = 12476880. Its totient is φ = 7997800.

The previous prime is 9997367. The next prime is 9997381. The reversal of 9997375 is 5737999.

9997375 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9997375 - 2³ = 9997367 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39865 + ... + 40114.

It is an arithmetic number, because the mean of its divisors is an integer number (1559610).

Almost surely, 2^9997375 is an apocalyptic number.

9997375 is a deficient number, since it is larger than the sum of its proper divisors (2479505).

9997375 is an equidigital number, since it uses as much as digits as its factorization.

9997375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79994 (or 79984 counting only the distinct ones).

The product of its digits is 535815, while the sum is 49.

The square root of 9997375 is about 3161.8625839843. The cubic root of 9997375 is about 215.4246160499.

The spelling of 9997375 in words is "nine million, nine hundred ninety-seven thousand, three hundred seventy-five".