729652633 has 4 divisors (see below), whose sum is σ = 734300260. Its totient is φ = 725005008.

The previous prime is 729652613. The next prime is 729652657. The reversal of 729652633 is 336256927.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 212226624 + 517426009 = 14568^2 + 22747^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-729652633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 729652633.

It is not an unprimeable number, because it can be changed into a prime (729652613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2323578 + ... + 2323891.

It is an arithmetic number, because the mean of its divisors is an integer number (183575065).

Almost surely, 2^729652633 is an apocalyptic number.

It is an amenable number.

729652633 is a deficient number, since it is larger than the sum of its proper divisors (4647627).

729652633 is a wasteful number, since it uses less digits than its factorization.

729652633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4647626.

The product of its digits is 408240, while the sum is 43.

The square root of 729652633 is about 27012.0830925717. The cubic root of 729652633 is about 900.2684931447.

The spelling of 729652633 in words is "seven hundred twenty-nine million, six hundred fifty-two thousand, six hundred thirty-three".