729424949 has 8 divisors (see below), whose sum is σ = 797640480. Its totient is φ = 661526800.

The previous prime is 729424909. The next prime is 729424963. The reversal of 729424949 is 949424927.

729424949 = 15592² + 15593² + 15594².

729424949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 729424949 - 2⁸ = 729424693 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 729424897 and 729424906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729424909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74522 + ... + 83739.

It is an arithmetic number, because the mean of its divisors is an integer number (99705060).

Almost surely, 2^729424949 is an apocalyptic number.

It is an amenable number.

729424949 is a deficient number, since it is larger than the sum of its proper divisors (68215531).

729424949 is a wasteful number, since it uses less digits than its factorization.

729424949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158691.

The product of its digits is 1306368, while the sum is 50.

The square root of 729424949 is about 27007.8682794478. The cubic root of 729424949 is about 900.1748421631.

The spelling of 729424949 in words is "seven hundred twenty-nine million, four hundred twenty-four thousand, nine hundred forty-nine".