9189897 has 16 divisors (see below), whose sum is σ = 12858240. Its totient is φ = 5830272.

The previous prime is 9189893. The next prime is 9189923. The reversal of 9189897 is 7989819.

It is not a de Polignac number, because 9189897 - 2² = 9189893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9189893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5628 + ... + 7074.

It is an arithmetic number, because the mean of its divisors is an integer number (803640).

Almost surely, 2^9189897 is an apocalyptic number.

It is an amenable number.

9189897 is a deficient number, since it is larger than the sum of its proper divisors (3668343).

9189897 is a wasteful number, since it uses less digits than its factorization.

9189897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552.

The product of its digits is 326592, while the sum is 51.

The square root of 9189897 is about 3031.4842899148. The cubic root of 9189897 is about 209.4611810365.

The spelling of 9189897 in words is "nine million, one hundred eighty-nine thousand, eight hundred ninety-seven".