9983553 has 8 divisors (see below), whose sum is σ = 13494048. Its totient is φ = 6564384.

The previous prime is 9983551. The next prime is 9983579. The reversal of 9983553 is 3553899.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9983553 - 2¹ = 9983551 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9983551) 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, 22575 + ... + 23012.

It is an arithmetic number, because the mean of its divisors is an integer number (1686756).

Almost surely, 2^9983553 is an apocalyptic number.

It is an amenable number.

9983553 is a deficient number, since it is larger than the sum of its proper divisors (3510495).

9983553 is a wasteful number, since it uses less digits than its factorization.

9983553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45663.

The product of its digits is 145800, while the sum is 42.

The square root of 9983553 is about 3159.6760909941. The cubic root of 9983553 is about 215.3252908992.

The spelling of 9983553 in words is "nine million, nine hundred eighty-three thousand, five hundred fifty-three".