729963909 has 12 divisors (see below), whose sum is σ = 1076826816. Its totient is φ = 476288232.

The previous prime is 729963893. The next prime is 729963911. The reversal of 729963909 is 909369927.

It is not a de Polignac number, because 729963909 - 2⁴ = 729963893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729963919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 862419 + ... + 863264.

It is an arithmetic number, because the mean of its divisors is an integer number (89735568).

Almost surely, 2^729963909 is an apocalyptic number.

It is an amenable number.

729963909 is a deficient number, since it is larger than the sum of its proper divisors (346862907).

729963909 is a wasteful number, since it uses less digits than its factorization.

729963909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725736 (or 1725733 counting only the distinct ones).

The product of its (nonzero) digits is 1653372, while the sum is 54.

The square root of 729963909 is about 27017.8442700375. The cubic root of 729963909 is about 900.3964956683.

The spelling of 729963909 in words is "seven hundred twenty-nine million, nine hundred sixty-three thousand, nine hundred nine".