729097 has 4 divisors (see below), whose sum is σ = 732996. Its totient is φ = 725200.

The previous prime is 729073. The next prime is 729139. The reversal of 729097 is 790927.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 553536 + 175561 = 744^2 + 419^2 .

It is a cyclic number.

It is not a de Polignac number, because 729097 - 2⁷ = 728969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (729037) 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, 1654 + ... + 2047.

It is an arithmetic number, because the mean of its divisors is an integer number (183249).

2⁷²⁹⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

729097 is a deficient number, since it is larger than the sum of its proper divisors (3899).

729097 is a wasteful number, since it uses less digits than its factorization.

729097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3898.

The product of its (nonzero) digits is 7938, while the sum is 34.

The square root of 729097 is about 853.8717702325. The cubic root of 729097 is about 90.0039915925.

The spelling of 729097 in words is "seven hundred twenty-nine thousand, ninety-seven".