729362665 has 16 divisors (see below), whose sum is σ = 890813520. Its totient is φ = 573131520.

The previous prime is 729362663. The next prime is 729362677. The reversal of 729362665 is 566263927.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 38303721 + 691058944 = 6189^2 + 26288^2 .

It is not a de Polignac number, because 729362665 - 2¹ = 729362663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (729362663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324927 + ... + 327163.

It is an arithmetic number, because the mean of its divisors is an integer number (55675845).

Almost surely, 2^729362665 is an apocalyptic number.

It is an amenable number.

729362665 is a deficient number, since it is larger than the sum of its proper divisors (161450855).

729362665 is a wasteful number, since it uses less digits than its factorization.

729362665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3372.

The product of its digits is 816480, while the sum is 46.

The square root of 729362665 is about 27006.7151834502. The cubic root of 729362665 is about 900.1492201139.

The spelling of 729362665 in words is "seven hundred twenty-nine million, three hundred sixty-two thousand, six hundred sixty-five".