9573993 has 48 divisors (see below), whose sum is σ = 16720704. Its totient is φ = 5201280.

The previous prime is 9573983. The next prime is 9574007. The reversal of 9573993 is 3993759.

It is not a de Polignac number, because 9573993 - 2⁹ = 9573481 is a prime.

It is a super-2 number, since 2×9573993² = 183322683928098, which contains 22 as substring.

Its product of digits (229635) is a multiple of the sum of its prime divisors (243).

It is not an unprimeable number, because it can be changed into a prime (9573913) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55255 + ... + 55427.

It is an arithmetic number, because the mean of its divisors is an integer number (348348).

Almost surely, 2^9573993 is an apocalyptic number.

It is an amenable number.

9573993 is a deficient number, since it is larger than the sum of its proper divisors (7146711).

9573993 is a wasteful number, since it uses less digits than its factorization.

9573993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 243 counting only the distinct ones).

The product of its digits is 229635, while the sum is 45.

The square root of 9573993 is about 3094.1869691407. The cubic root of 9573993 is about 212.3396197016.

It can be divided in two parts, 957 and 3993, that added together give a triangular number (4950 = T₉₉).

The spelling of 9573993 in words is "nine million, five hundred seventy-three thousand, nine hundred ninety-three".