729070853 has 14 divisors (see below), whose sum is σ = 850718886. Its totient is φ = 624817032.

The previous prime is 729070843. The next prime is 729070879. The reversal of 729070853 is 358070927.

It can be written as a sum of positive squares in only one way, i.e., 593068609 + 136002244 = 24353^2 + 11662^2 .

It is not a de Polignac number, because 729070853 - 2²⁰ = 728022277 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 729070853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729070843) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 114551 + ... + 120747.

Almost surely, 2^729070853 is an apocalyptic number.

It is an amenable number.

729070853 is a deficient number, since it is larger than the sum of its proper divisors (121648033).

729070853 is an frugal number, since it uses more digits than its factorization.

729070853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6239 (or 6204 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 729070853 is about 27001.3120607129. The cubic root of 729070853 is about 900.0291566686.

The spelling of 729070853 in words is "seven hundred twenty-nine million, seventy thousand, eight hundred fifty-three".