9489813 has 16 divisors (see below), whose sum is σ = 13264896. Its totient is φ = 6027120.

The previous prime is 9489811. The next prime is 9489827. The reversal of 9489813 is 3189849.

It is not a de Polignac number, because 9489813 - 2¹ = 9489811 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9489811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5470 + ... + 6992.

It is an arithmetic number, because the mean of its divisors is an integer number (829056).

Almost surely, 2^9489813 is an apocalyptic number.

9489813 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

It is an amenable number.

9489813 is a deficient number, since it is larger than the sum of its proper divisors (3775083).

9489813 is a wasteful number, since it uses less digits than its factorization.

9489813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624.

The product of its digits is 62208, while the sum is 42.

The square root of 9489813 is about 3080.5540086160. The cubic root of 9489813 is about 211.7154497958.

The spelling of 9489813 in words is "nine million, four hundred eighty-nine thousand, eight hundred thirteen".