9906897 has 32 divisors (see below), whose sum is σ = 17740800. Its totient is φ = 4749120.

The previous prime is 9906877. The next prime is 9906917. The reversal of 9906897 is 7986099.

It is a happy number.

9906897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9906877) and next prime (9906917).

It is not a de Polignac number, because 9906897 - 2⁶ = 9906833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9906877) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1354 + ... + 4652.

It is an arithmetic number, because the mean of its divisors is an integer number (554400).

Almost surely, 2^9906897 is an apocalyptic number.

It is an amenable number.

9906897 is a deficient number, since it is larger than the sum of its proper divisors (7833903).

9906897 is a wasteful number, since it uses less digits than its factorization.

9906897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333.

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 9906897 is about 3147.5223589357. The cubic root of 9906897 is about 214.7727687599.

It can be divided in two parts, 990 and 6897, that added together give a palindrome (7887).

The spelling of 9906897 in words is "nine million, nine hundred six thousand, eight hundred ninety-seven".