729174285 has 64 divisors (see below), whose sum is σ = 1568678400. Its totient is φ = 313721856.

The previous prime is 729174283. The next prime is 729174287. The reversal of 729174285 is 582471927.

It is a happy number.

729174285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (729174283) and next prime (729174287).

It is not a de Polignac number, because 729174285 - 2¹ = 729174283 is a prime.

It is a super-2 number, since 2×729174285² = 1063390275810522450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 729174285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729174283) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6630 + ... + 38759.

It is an arithmetic number, because the mean of its divisors is an integer number (24510600).

Almost surely, 2^729174285 is an apocalyptic number.

It is an amenable number.

729174285 is an abundant number, since it is smaller than the sum of its proper divisors (839504115).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

729174285 is a wasteful number, since it uses less digits than its factorization.

729174285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45427 (or 45421 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 729174285 is about 27003.2273071202. The cubic root of 729174285 is about 900.0717165073.

The spelling of 729174285 in words is "seven hundred twenty-nine million, one hundred seventy-four thousand, two hundred eighty-five".