726589433 has 2 divisors, whose sum is σ = 726589434. Its totient is φ = 726589432.

The previous prime is 726589429. The next prime is 726589441. The reversal of 726589433 is 334985627.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 467121769 + 259467664 = 21613^2 + 16108^2 .

It is a cyclic number.

It is not a de Polignac number, because 726589433 - 2² = 726589429 is a prime.

It is a super-2 number, since 2×726589433² = 1055864408294522978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (726589933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363294716 + 363294717.

It is an arithmetic number, because the mean of its divisors is an integer number (363294717).

Almost surely, 2^726589433 is an apocalyptic number.

It is an amenable number.

726589433 is a deficient number, since it is larger than the sum of its proper divisors (1).

726589433 is an equidigital number, since it uses as much as digits as its factorization.

726589433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 47.

The square root of 726589433 is about 26955.3229066172. The cubic root of 726589433 is about 899.0069016955.

The spelling of 726589433 in words is "seven hundred twenty-six million, five hundred eighty-nine thousand, four hundred thirty-three".