9791897 has 8 divisors (see below), whose sum is σ = 10378560. Its totient is φ = 9212400.

The previous prime is 9791863. The next prime is 9791911. The reversal of 9791897 is 7981979.

9791897 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 9791897 - 2⁸ = 9791641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9791597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1163 + ... + 4575.

It is an arithmetic number, because the mean of its divisors is an integer number (1297320).

Almost surely, 2^9791897 is an apocalyptic number.

It is an amenable number.

9791897 is a deficient number, since it is larger than the sum of its proper divisors (586663).

9791897 is a wasteful number, since it uses less digits than its factorization.

9791897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3583.

The product of its digits is 285768, while the sum is 50.

The square root of 9791897 is about 3129.2006966636. The cubic root of 9791897 is about 213.9384995195.

The spelling of 9791897 in words is "nine million, seven hundred ninety-one thousand, eight hundred ninety-seven".