729435361 has 8 divisors (see below), whose sum is σ = 739481600. Its totient is φ = 719409600.

The previous prime is 729435341. The next prime is 729435401. The reversal of 729435361 is 163534927.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 729435361 - 2⁷ = 729435233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (729435341) 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, 75136 + ... + 84286.

It is an arithmetic number, because the mean of its divisors is an integer number (92435200).

Almost surely, 2^729435361 is an apocalyptic number.

It is an amenable number.

729435361 is a deficient number, since it is larger than the sum of its proper divisors (10046239).

729435361 is a wasteful number, since it uses less digits than its factorization.

729435361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10239.

The product of its digits is 136080, while the sum is 40.

The square root of 729435361 is about 27008.0610374014. The cubic root of 729435361 is about 900.1791252520.

The spelling of 729435361 in words is "seven hundred twenty-nine million, four hundred thirty-five thousand, three hundred sixty-one".