729941461 has 6 divisors (see below), whose sum is σ = 775405250. Its totient is φ = 687003456.

The previous prime is 729941447. The next prime is 729941473. The reversal of 729941461 is 164149927.

It can be written as a sum of positive squares in 3 ways, for example, as 90155025 + 639786436 = 9495^2 + 25294^2 .

It is not a de Polignac number, because 729941461 - 2¹⁹ = 729417173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729941561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1262586 + ... + 1263163.

Almost surely, 2^729941461 is an apocalyptic number.

It is an amenable number.

729941461 is a deficient number, since it is larger than the sum of its proper divisors (45463789).

729941461 is a wasteful number, since it uses less digits than its factorization.

729941461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525783 (or 2525766 counting only the distinct ones).

The product of its digits is 108864, while the sum is 43.

The square root of 729941461 is about 27017.4288376966. The cubic root of 729941461 is about 900.3872658477.

The spelling of 729941461 in words is "seven hundred twenty-nine million, nine hundred forty-one thousand, four hundred sixty-one".