9698891 has 8 divisors (see below), whose sum is σ = 10314864. Its totient is φ = 9088000.

The previous prime is 9698879. The next prime is 9698957. The reversal of 9698891 is 1988969.

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 9698891 - 2¹⁸ = 9436747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9698851) 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, 3131 + ... + 5403.

It is an arithmetic number, because the mean of its divisors is an integer number (1289358).

Almost surely, 2^9698891 is an apocalyptic number.

9698891 is a deficient number, since it is larger than the sum of its proper divisors (615973).

9698891 is a wasteful number, since it uses less digits than its factorization.

9698891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541.

The product of its digits is 279936, while the sum is 50.

The square root of 9698891 is about 3114.3042561702. The cubic root of 9698891 is about 213.2589956381.

It can be divided in two parts, 96988 and 91, that added together give a palindrome (97079).

The spelling of 9698891 in words is "nine million, six hundred ninety-eight thousand, eight hundred ninety-one".