9426989 has 18 divisors (see below), whose sum is σ = 11244618. Its totient is φ = 7893600.

The previous prime is 9426953. The next prime is 9426997. The reversal of 9426989 is 9896249.

It can be written as a sum of positive squares in 3 ways, for example, as 75625 + 9351364 = 275^2 + 3058^2 .

It is not a de Polignac number, because 9426989 - 2¹⁶ = 9361453 is a prime.

It is a super-2 number, since 2×9426989² = 177736243212242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9426919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 20219 + ... + 20679.

It is an arithmetic number, because the mean of its divisors is an integer number (624701).

Almost surely, 2^9426989 is an apocalyptic number.

It is an amenable number.

9426989 is a deficient number, since it is larger than the sum of its proper divisors (1817629).

9426989 is a wasteful number, since it uses less digits than its factorization.

9426989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509 (or 485 counting only the distinct ones).

The product of its digits is 279936, while the sum is 47.

The square root of 9426989 is about 3070.3402091625. The cubic root of 9426989 is about 211.2472188983.

The spelling of 9426989 in words is "nine million, four hundred twenty-six thousand, nine hundred eighty-nine".