9720433 has 2 divisors, whose sum is σ = 9720434. Its totient is φ = 9720432.

The previous prime is 9720407. The next prime is 9720437. The reversal of 9720433 is 3340279.

9720433 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5987809 + 3732624 = 2447^2 + 1932^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9720433 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (9720437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4860216 + 4860217.

It is an arithmetic number, because the mean of its divisors is an integer number (4860217).

Almost surely, 2^9720433 is an apocalyptic number.

It is an amenable number.

9720433 is a deficient number, since it is larger than the sum of its proper divisors (1).

9720433 is an equidigital number, since it uses as much as digits as its factorization.

9720433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 9720433 is about 3117.7608952580. The cubic root of 9720433 is about 213.4167672240.

It can be divided in two parts, 9720 and 433, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 9720433 in words is "nine million, seven hundred twenty thousand, four hundred thirty-three".