9261989 has 8 divisors (see below), whose sum is σ = 10173600. Its totient is φ = 8362000.

The previous prime is 9261947. The next prime is 9262007. The reversal of 9261989 is 9891629.

9261989 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 9261989 - 2¹² = 9257893 is a prime.

It is a super-2 number, since 2×9261989² = 171568880472242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9261929) 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, 1187 + ... + 4464.

It is an arithmetic number, because the mean of its divisors is an integer number (1271700).

Almost surely, 2^9261989 is an apocalyptic number.

It is an amenable number.

9261989 is a deficient number, since it is larger than the sum of its proper divisors (911611).

9261989 is a wasteful number, since it uses less digits than its factorization.

9261989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5811.

The product of its digits is 69984, while the sum is 44.

The square root of 9261989 is about 3043.3516063708. The cubic root of 9261989 is about 210.0074751685.

The spelling of 9261989 in words is "nine million, two hundred sixty-one thousand, nine hundred eighty-nine".