9721033 has 4 divisors (see below), whose sum is σ = 11109760. Its totient is φ = 8332308.

The previous prime is 9721031. The next prime is 9721039. The reversal of 9721033 is 3301279.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9721033 - 2¹ = 9721031 is a prime.

It is a Duffinian number.

9721033 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9720989 and 9721007.

It is not an unprimeable number, because it can be changed into a prime (9721031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694353 + ... + 694366.

It is an arithmetic number, because the mean of its divisors is an integer number (2777440).

Almost surely, 2^9721033 is an apocalyptic number.

It is an amenable number.

9721033 is a deficient number, since it is larger than the sum of its proper divisors (1388727).

9721033 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 12 representation: 9721033 = (3309721)₁₂.

9721033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388726.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 9721033 is about 3117.8571166748. The cubic root of 9721033 is about 213.4211582295.

The spelling of 9721033 in words is "nine million, seven hundred twenty-one thousand, thirty-three".