726432563 has 16 divisors (see below), whose sum is σ = 746978496. Its totient is φ = 706268160.

The previous prime is 726432557. The next prime is 726432569. The reversal of 726432563 is 365234627.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (726432557) and next prime (726432569).

It is a cyclic number.

It is not a de Polignac number, because 726432563 - 2¹² = 726428467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726432569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2761970 + ... + 2762232.

It is an arithmetic number, because the mean of its divisors is an integer number (46686156).

Almost surely, 2^726432563 is an apocalyptic number.

726432563 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

726432563 is a deficient number, since it is larger than the sum of its proper divisors (20545933).

726432563 is a wasteful number, since it uses less digits than its factorization.

726432563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734.

The product of its digits is 181440, while the sum is 38.

The square root of 726432563 is about 26952.4129346521. The cubic root of 726432563 is about 898.9421987804.

The spelling of 726432563 in words is "seven hundred twenty-six million, four hundred thirty-two thousand, five hundred sixty-three".