729695441 has 4 divisors (see below), whose sum is σ = 732748800. Its totient is φ = 726642084.

The previous prime is 729695431. The next prime is 729695443. The reversal of 729695441 is 144596927.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-729695441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (729695443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1526321 + ... + 1526798.

It is an arithmetic number, because the mean of its divisors is an integer number (183187200).

Almost surely, 2^729695441 is an apocalyptic number.

It is an amenable number.

729695441 is a deficient number, since it is larger than the sum of its proper divisors (3053359).

729695441 is a wasteful number, since it uses less digits than its factorization.

729695441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3053358.

The product of its digits is 544320, while the sum is 47.

The square root of 729695441 is about 27012.8754670805. The cubic root of 729695441 is about 900.2860987551.

The spelling of 729695441 in words is "seven hundred twenty-nine million, six hundred ninety-five thousand, four hundred forty-one".