728042333 has 2 divisors, whose sum is σ = 728042334. Its totient is φ = 728042332.

The previous prime is 728042311. The next prime is 728042351. The reversal of 728042333 is 333240827.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 699761209 + 28281124 = 26453^2 + 5318^2 .

It is a cyclic number.

It is not a de Polignac number, because 728042333 - 2¹⁰ = 728041309 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 728042333.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (728042233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364021166 + 364021167.

It is an arithmetic number, because the mean of its divisors is an integer number (364021167).

Almost surely, 2^728042333 is an apocalyptic number.

It is an amenable number.

728042333 is a deficient number, since it is larger than the sum of its proper divisors (1).

728042333 is an equidigital number, since it uses as much as digits as its factorization.

728042333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 728042333 is about 26982.2595977431. The cubic root of 728042333 is about 899.6057256544.

The spelling of 728042333 in words is "seven hundred twenty-eight million, forty-two thousand, three hundred thirty-three".